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{{Infobox ClassicTV
{{title dab away}}
|image          = [[Image:Androidinvasion.jpg|250px]]
{{real world}}
|story name      = The Android Invasion
{{ImageLinkTV}}
|series          = [[Doctor Who]] - [[TV stories|TV Stories]]
{{Infobox Story SMW
|number         = [[Season 13]]
|image          = Android Sarah.jpg
|series          =[[Doctor Who television stories|''Doctor Who'' television stories]]
|season number   = Season 13 (Doctor Who 1963)
|season serial number = 4
|story number    = 83
|story number    = 83
|doctor          = [[Fourth Doctor]]
|doctor          = Fourth Doctor
|companions      = [[Sarah Jane Smith]]<br>[[Harry Sullivan]] (guest)
|companions      = [[Sarah Jane Smith|Sarah]]
|enemy          = [[Kraal|The Kraals]]
|featuring      = Harry Sullivan
|year            = [[Oseidon]]; [[Earth]]; circa [[1980]]
|featuring2      = John Benton
|writer          = [[Terry Nation]]
|enemy          = [[Styggron]]
|setting        = [[Oseidon]] and [[Devesham]], circa [[1980]]
|writer          = Terry Nation
|director        = [[Barry Letts]]
|director        = [[Barry Letts]]
|producer        = [[Philip Hinchcliffe]]
|producer        = [[Philip Hinchcliffe]]
|broadcast date  = [[22nd November]] - [[13th December]] [[1975]]
|novelisation    = Doctor Who and the Android Invasion (novelisation)
|format          = 4 25-minute Episodes
|epcount = 4
|production code = [[List of production codes|4J]]
|broadcast date  = 22 November - 13 December 1975
|previous story  = [[Pyramids of Mars]]
|network = BBC1
|next story     = [[The Brain of Morbius]]
|format          = 4x25-minute episodes
}}
|serial production code = [[List of production codes|4J]]
|prev = Pyramids of Mars (TV story)
|next = The Brain of Morbius (TV story)
|made prev = Planet of Evil (TV story)
|made next = Disney Time (TV story)
|clip = This isn't Earth - The Android Invasion - Doctor Who - BBC
|bts = Exclusive First Look Philip Hinchcliffe Interview - The Android Invasion - BBC
|bts2 = Exclusive First Look The Kraal Costume - Doctor Who The Android Invasion - BBC
|bts3 = Exclusive First Look Filming in East Hagbourne - Doctor Who The Android Invasion - BBC
}}{{you may|The Android Invasion (The Girl Who Loved Doctor Who)|n1=the TV episode mentioned in ''The Girl Who Loved Doctor Who''}}
'''''The Android Invasion''''' was the fourth serial of [[Season 13 (Doctor Who 1963)|season 13]] of ''[[Doctor Who]]''. The final regular [[UNIT]]-based story, it saw the final appearances of [[John Benton]] and [[Harry Sullivan]] in the classic series.


==Synopsis==
== Synopsis ==
[[Fourth Doctor|The Doctor]] and [[Sarah Jane Smith|Sarah]] find themselves in the English village of [[Devesham]] near a [[Space Defence Station]]. But the village seems deserted, the telephones don't work, calendars are stuck on the same date and suited figures are wandering about aimlessly. Who are the [[Kraal]]s, and what are their plans for [[Earth]]?
The [[Fourth Doctor]] and [[Sarah Jane Smith|Sarah]] find themselves in the English village of [[Devesham]] near a [[Space Defence Station]]. The village seems deserted, the telephones don't work, calendars are stuck on the same date and white-suited figures are wandering about aimlessly. Who are the [[Kraal (species)|Kraals]] and what are their plans for [[Earth]]?


==Plot==
== Plot ==
===Episode One===
=== Part one ===
A [[UNIT]] soldier walks, as if in a trance, through the woods, his right arm twitching spasmodically. Nearby, the [[the Doctor's TARDIS|TARDIS]] materialises, and the [[Fourth Doctor|Doctor]] and [[Sarah Jane Smith|Sarah]] step out. The Doctor explains that the coordinates were set for Sarah's time but the linear coordinates were off, so they could be miles from [[London]]. In any case, Sarah is glad to be back on [[Earth]]. The Doctor detects an odd reading of energy or radiation nearby.  
A [[UNIT]] soldier walks, as if in a trance, through the woods, his right arm twitching spasmodically. Nearby, [[the Doctor's TARDIS|the TARDIS]] materialises. [[Fourth Doctor|The Doctor]] and [[Sarah Jane Smith|Sarah]] step out. The Doctor explains that the coordinates were set for Sarah's time, but the linear coordinates were off. They could be miles from [[London]]. In any case, Sarah is glad to be back on [[Earth]]. The Doctor detects an odd reading of [[energy]] or [[radiation]] nearby.


The Doctor and Sarah meet a group of four men in white suits and opaque helmets. When the Doctor asks them for directions, they start shooting at them with their index fingers. The Doctor and Sarah duck and run, with the four in pursuit. Sarah slips down a hillside and clings to a cliff ledge. The Doctor helps her up; at that point, they see the soldier, jerkily making his way towards the cliff's edge. The Doctor shouts at him to stop, but he pays no heed, running right over the cliff and falling to his death.
The Doctor and Sarah meet four [[service mechanic|figures]] in white overalls and helmets with dark-tinted visors. When the Doctor asks them for directions, they shoot at the travellers with their index fingers. The Doctor and Sarah duck and run, with the four in pursuit. The two manage to lose them but Sarah slips down a hillside and clings to a cliff ledge. The Doctor helps her up. They see the soldier, jerkily making his way towards the cliff's edge. The Doctor shouts at him to stop, but he pays no heed. He runs over the cliff and falls to his death.


The Doctor searches the body, finding a wallet full of shiny, freshly minted coins, all dated the same year. They also spot a casket-shaped pod nearby, which the Doctor finds familiar. Before he can identify it further, shots ring out: the white-suited men have found them again. They run once more through the countryside, avoiding their pursuers and reaching a village, which Sarah recognises as [[Devesham]], which lies about a mile from a Space Defence Station.  
[[File:Androids Attack AE 1.jpg|Androids attack the Doctor and Sarah.|thumb|left]]
The Doctor searches the body. He finds a wallet full of shiny, freshly minted [[coin]]s, all dated the same year. They also spot a casket-shaped pod nearby, which the Doctor finds familiar. Before he can identify it, shots ring out. The white-suited figures have found them again. The Doctor and Sarah run again, avoiding their pursuers. They reach a village which Sarah recognises as [[Devesham]]. It lies about a mile from a [[Space Defence Station]].


The village, however, is deathly quiet, and seems unpopulated. The Doctor decides to try the local pub, the ''[[Fleur-de-Lys]]'', but it is also empty, and the Doctor finds the same freshly minted coins in the register. Sarah then spots the white suits coming down the street, accompanied by the "dead" soldier. A lorry arrives, carrying what seem to be villagers, all in a trance-like state. They are helped off the vehicle by the white suits, and distribute themselves around the village. Mr [[Morgan (The Android Invasion)|Morgan]], the landlord of the pub, enters it along with several other people while Sarah and the Doctor hide in the store room. The villagers take their seats silently, waiting motionless until the clock strikes eight, when they suddenly come to life, acting normally.
The village, however, is deathly quiet and seems empty. The Doctor decides to try the local pub, the ''[[Fleur-de-Lys]]'', but it too is empty, and the Doctor finds the same freshly minted coins in the register. Sarah spots the white-overalled figures coming down the street, accompanied by the "dead" soldier. A large tradesman's pickup truck arrives, carrying on benches in the back what seem to be villagers, all in trances. Two of the white-overalled figures emerge from the truck's cab and help the villagers off; the villagers then distribute themselves around the village. Mr [[Morgan (The Android Invasion)|Morgan]], the landlord of the pub, enters it with several other people while Sarah and the Doctor hide in the store room. The villagers take their seats silently, waiting motionless until the clock strikes eight, whereupon they suddenly come to life, acting normally.


The Doctor intends to get to the Space Defence Station and contact [[UNIT]]. He leaves, telling Sarah to meet him at the TARDIS if anything goes wrong. However, the "dead" soldier finds her in the store room and questions her. Morgan suggests that Sarah might be part of "the test". But when Sarah asks what test, he tells Sarah that she should go.  
The Doctor intends to get to the Space Defence Station and contact UNIT. He leaves, telling Sarah to meet him at the TARDIS if anything goes wrong. However, the "dead" soldier finds her in the store room and questions her. Morgan suggests that Sarah might be part of "the test". When Sarah asks what test, he tells Sarah that she should go.


Outside, Sarah hides behind the lorry, observing one of the white suits turn around. Behind the opaque visor is nothing but a slab of plastic and electronics. Sarah runs for the woods, reaching the TARDIS. She spots a similar pod just next to the time machine and goes to examine it, leaving the TARDIS key in the lock. Suddenly, the TARDIS dematerialises without her, and as Sarah is still trying to understand why, a hand reaches out from the pod. Startled, Sarah sees a man lying inside, but when she goes closer, he grabs her around the throat. She breaks free and runs.
Outside, Sarah hides behind the truck. She observes one of the white-overalled figures standing near the vehicle turn around. Its helmet visor is raised, but beneath is nothing but [[plastic]] and electronics. Sarah runs for the woods, reaching the TARDIS. She spots a similar pod next to the time machine and goes to examine it, leaving the [[TARDIS key]] in the lock. Suddenly, the TARDIS dematerialises. As Sarah is still trying to understand why, a hand reaches out from the pod. Startled, Sarah sees a man lying inside. When she goes closer and asks the man if she can help him, he grabs her by the throat. Sarah breaks free and runs.


At the Defence Station, the Doctor asks a soldier on guard where the command officer is, but the soldier just stares ahead, unresponsive. Also inside the building, Senior Defence Astronaut [[Guy Crayford]] is addressed by a disembodied voice. The voice, named [[Styggron]], tells him that there is a random "unit" within the complex and orders him to check.
At the Defence Station, the Doctor asks a soldier where the commanding officer is. The soldier just stares ahead, unresponsive. Also inside the building, Senior Defence Astronaut [[Guy Crayford]] is addressed by a disembodied voice. The voice, named [[Styggron]], tells him there is a random "unit" within the complex and orders him to check it out.


The Doctor enters an office marked with [[Brigadier Lethbridge-Stewart]]'s name, but it is empty. Crayford enters, and points a gun on him. The Doctor introduces himself as UNIT's scientific advisor. Crayford has heard of him, but as the Brigadier is in [[Geneva]], and Colonel [[Faraday]] is in command, there is no one to confirm the Doctor's identity; he could be an impostor. Before Crayford can have the Doctor taken to detention, the Doctor flips the desk over and runs. However, despite making it outside, he is recaptured. Sarah sees this and sneaks into the building, going to the Doctor's cell and unlocks the door, unaware that from behind a wall a stony alien face is observing them.
The Doctor enters an office marked as being that of [[Alistair Gordon Lethbridge-Stewart|Brigadier Lethbridge-Stewart]]. It is empty. Crayford enters and points a gun at him. The Doctor introduces himself as UNIT's scientific advisor. Crayford has heard of him, but as the Brigadier is in [[Geneva]], and Colonel [[Faraday]] is in command, there is no-one to confirm the Doctor's identity; he could be an impostor. Before Crayford can have the Doctor taken to detention, the Doctor flips the desk over and runs. He makes it outside before he is recaptured by the white-overalled figures. Sarah sees this and sneaks into the building. She goes to the Doctor's cell and unlocks the door to let him out. Behind them, a communicator on a wall swings back to reveal a stony alien face observing them.


===Episode Two===
=== Part two ===
Styggron contacts Crayford again, complaining about a second random unit. Crayford identifies these random units as the Doctor and Sarah. At that moment, the alarm sounds indicating the Doctor's escape. Crayford sends his UNIT soldiers to stop them. Hiding in a storage cupboard, the Doctor tells Sarah about Crayford. She replies that it is impossible: Crayford was in deep space while testing the [[XK-5 Space Freighter]] when it vanished, presumed destroyed. The Doctor and Sarah venture out to find [[Sergeant Benton]] standing in the reception area, who points a pistol at them. Styggron wants the Doctor captured alive. When Crayford cancels the kill order, Benton becomes dizzy, giving the Doctor and Sarah a chance to run away. Crayford orders [[Harry Sullivan]] to cordon off the perimeter road.  
Styggron contacts Crayford again, complaining about a second random unit. Crayford identifies these random units as the Doctor and Sarah. The alarm sounds, indicating the Doctor's escape. Crayford sends his UNIT soldiers to stop them. Hiding in a storage cupboard, the Doctor tells Sarah about Crayford. She says it is impossible. Crayford was in deep space testing the [[XK-5 space freighter]] when it vanished, presumed to be destroyed. The Doctor and Sarah venture out to find [[John Benton|RSM Benton]] standing in the reception area. He points a pistol at them. Styggron wants the Doctor captured alive. When Crayford cancels the kill order, Benton seems to be dizzy, giving the Doctor and Sarah a chance to run away. Crayford orders [[Harry Sullivan]] to cordon off the perimeter road.


The two decide to return to the village and warn [[London]], while being pursued by tracker dogs. Sarah twists her ankle while running through the woods and this slows her down. The Doctor hides Sarah in a tree, taking her scarf to draw the dogs away. He then hides in a stream, the dogs losing his trail. Unfortunately, when the soldiers turn back, they spot Sarah, and capture her. Styggron tells Crayford to locate, but not seize the Doctor. He has other plans for him.
The Doctor and Sarah decide to return to the village and warn [[London]]. They are pursued by tracker dogs. Sarah twists her ankle in the woods, and this slows her down. The Doctor hides her in a tree, taking her [[scarf]] to draw the dogs away. He hides by submerging himself in a pond and the dogs lose his trail. Unfortunately, when the soldiers turn back, they spot Sarah and capture her. Styggron tells Crayford to locate, but not seize, the Doctor. He has other plans for him.
[[File:Styggron Reflected AE 2.jpg|thumb|[[Styggron]] examines a groggy "patient".]]
Meanwhile, in an alien-looking room, Sarah is strapped to a table. Harry tells her it is no use to struggle. Under Styggron's order, he starts the scan. In the village, the Doctor finds the [[telephone]]s are not working. He meets Morgan, who tells him the lines are down after a gale. Styggron speaks to another of his kind, [[Chedaki]], who feels the time for experiments are over. Styggron insists that they must confirm their techniques as flawless if they are to conquer worlds other than Earth. Styggron contacts Crayford and tells him to commence the final test.


Meanwhile, in an alien-looking room, Sarah is strapped down to a table. Harry tells her it is no use to struggle, and under Styggron's order, commences the scan. In the village, the Doctor finds the telephones are not working. He meets Morgan, who tells him the lines are down after a gale. Styggron speaks to another of his kind, [[Chedaki]], who feels that the time for experiments are over, but Styggron insists that they must confirm their techniques are flawless if they are to conquer worlds other than Earth. Styggron contacts Crayford and tells him to commence the final test.
In the pub, the Doctor finds more oddities: an unused [[Darts|dart]] board, plastic horse brass on the wall and a tear-off calendar with only one date. The telephone rings, and Morgan answers it. The call is for the Doctor. It is Sarah, who tells him she was captured but escaped. She asks the Doctor to meet her by the village shop and to be careful of the [[robot]]s. He hangs up and finds that the telephone has stopped working again. The Doctor meets Sarah, who explains how she escaped. The Doctor remarks on the providence of her finding the only telephone in the village that worked. He believes they are being tested to find out how smart they are.


In the pub, the Doctor finds more oddities: an unused dart board, plastic horse brass on the wall and a tear-off calendar with only one date. The telephone rings, and the call is for the Doctor. It is Sarah, who tells the Doctor she was captured but managed to escape. She asks the Doctor to meet her by the village shop and to be careful of the [[robot]]s. He hangs up the call, and then finds that the telephone has stopped working again. The Doctor meets Sarah, who explains how she escaped. The Doctor remarks on the providence of her finding the only telephone in the village that worked, and believe they are being tested to find out how smart they are.  
He decides to take Sarah to the TARDIS and use the radio there. However, the TARDIS is gone. The Doctor is puzzled: the ship is not programmed to auto-operate, unless... He asks Sarah for her TARDIS key. When she claims she has lost it, the Doctor tells her she never had it. When Sarah put the key in the lock and left it there, she cancelled the TARDIS's pause control, and it continued its journey to Earth. This is not Earth, this is not a real forest, and she is not the real Sarah. The imposter responds by drawing a pistol on The Doctor, who explains that he knew immediately that it was not the genuine article; the real Sarah wasn't wearing her scarf, which he pulls out of his coat pocket. Knocking the pistol out of the imposter's hand, he grabs it by the shoulders and demands to know where the real Sarah is. The imposter pulls free but falls to the ground, its face popping open to reveal the electronics underneath.


He decides to take Sarah to the TARDIS and use the radio there. However, the TARDIS is gone. The Doctor is puzzled: the ship is not programmed to auto-operate, unless... he asks Sarah for her TARDIS key, and when she claims she has lost it, the Doctor tells her she never had it. When Sarah put the key in the lock, she released the TARDIS's pause control and it continued its journey to Earth. This is not Earth, this is not a real forest, and she is not the real Sarah. The Doctor grabs the duplicate by the shoulders and demands to know where Sarah is. The duplicate pulls free, but falls to the ground, her face popping open and revealing the electronics underneath.
=== Part three ===
The [[android]] Sarah rises to its feet and fires its pistol at the Doctor's retreating form. Chedaki tells Styggron it was a foolish experiment. The Doctor could undo their plans. Styggron dismisses this. The village and the Doctor will be destroyed by a matter-dissolving [[bomb]]. The real Sarah is being kept alive so Styggron can test the [[virus]] he intends to use to cleanse the Earth of [[human]] life. All the while, Sarah is feigning unconsciousness and listening. When the coast is clear, she gets up and sneaks away.


===Episode Three===
The Doctor watches the truck drive into the village and evacuate the androids to the Kraal base. The Doctor is grabbed from behind by Styggron, who gets two of the white-overalled figures to tie him up while the Kraal places the bomb at the Doctor's feet. Luckily, Sarah has made it back to the village. She uses [[the Doctor's sonic screwdriver]] to cut his bonds. They run into the base and shut the door as the village dissolves into a wasteland.
The [[android]] Sarah rises to its feet and starts to fire its pistol at the Doctor's retreating form. Chedaki tells Styggron that it was a foolish experiment. The Doctor could undo their plans. Styggron dismisses this; both the village and the Doctor will be destroyed by a matter dissolving bomb. The real Sarah is being kept alive so Styggron can test the [[virus]] he intends to use to cleanse the Earth of [[human]] life. All the while, Sarah is feigning unconsciousness and listening. When the coast is clear, she gets up and sneaks away.


The Doctor watches the lorry drive into the village and evacuate the androids to the Kraal base. The Doctor is grabbed from behind by Styggron, who gets two white suits to tie him up while the Kraal places the bomb at the Doctor's feet. Luckily, Sarah too has made it back to the village, and uses the Doctor's [[sonic screwdriver]] to cut his bonds. With seconds to spare, they run into the base and shut the door, as the village dissolves into a wasteland.
[[File:Devesham Disappears AE 3.jpg|thumb|left|The duplicate [[Devesham]] disappears.]]
However, the two are surrounded by androids, who escort them to a cell. The Doctor tells Sarah that he should have realised — the radiation levels he picked up when they landed were those of [[Oseidon]], the Kraal planet. The levels are increasing, and the planet will soon be uninhabitable. This is why the Kraals are invading Earth. The duplicated village and their androids are a training ground.


However, the two are surrounded by androids, who escort them to a cell. The Doctor tells Sarah that he should have realised — the radiation levels he picked up when they landed were those of [[Oseidon]], the Kraal planet. The levels are increasing and the planet will soon be uninhabitable, which is why the Kraals are invading Earth. The duplicated village and their androids were a training ground.  
Crayford enters the cell and tells the Doctor that it is all for the best. Soon, the Kraals will send his ship back by space-time warp so he can make a normal landing. He has recently established radio contact with Earth. He fed them a story of how his ship was trapped in an orbit around [[Jupiter]] and he survived by rationing his supplies and recycling his water. With the world's attention focused on his landing, the space shells containing the androids will be taken for [[meteorite]]s. The androids will emerge and pave the way for the main invasion fleet. He is helping the Kraals because, while Earth left him for dead, the Kraals rescued his ship and rebuilt his body. The Kraals only want to survive and have also promised him no humans will be harmed as long as they obey.


Crayford enters the cell and tells the Doctor that it is all for the best. Soon, the Kraals will send his ship back by space-time warp so he can make a normal landing. He has recently established radio contact with Earth, and fed them a story of how his ship was trapped in an orbit around [[Jupiter]] and he survived by rationing his supplies and recycling his water. The world's attention focused on his landing, the space shells containing the androids will be taken for [[meteorite]]s, who will emerge and pave the way for the main invasion fleet. He is helping the Kraals because while Earth left him for dead, they rescued his ship and reconstructed his body. The Kraals only want to survive, and have also promised him no humans will be harmed as long as they obey.  
Styggron gets "Harry" to place a drop of the virus in a jug of water to be taken to the cell. Meanwhile, although the sonic screwdriver is useless on the door, the Doctor has removed a floor plate. He intends to use the wiring below to electrocute their android guard. "Harry" enters with the water and to take the Doctor away. Before the Doctor goes, he tells Sarah not to waste the water.


Styggron gets "Harry" to place a drop of the virus in a jug of water to be taken to the cell. Meanwhile, although the sonic screwdriver is useless on the door, the Doctor has managed to remove a floor plate, intending to use the wiring below to electrocute their android guard. "Harry" enters with the water, and also to take the Doctor away. Before he goes, he tells Sarah not to waste the water.
The Doctor is strapped to the Kraal analysis table. It will copy all his knowledge and experience. Despite what Styggron has told Crayford, he reveals he ''does'' intend genocide. Earth's resources are too limited to be wasted on an "inferior species". The virus, distributed by androids, will wipe the Earth clean in three weeks, then burn itself out. Styggron will signal the invasion fleet. Styggron leaves the machine to do its work. When it finishes, the stimulation will make the Doctor's skull burst.


The Doctor is strapped down to the Kraal analysis table which will copy all his knowledge and experience. Despite what Styggron has told Crayford, he reveals that he ''does'' intend genocide. Earth's resources are too limited to be wasted on an "inferior species". The virus, distributed by androids, will wipe the Earth clean in three weeks, then burn itself out. Styggron will then signal the invasion fleet. Styggron leaves the machine to do its work, and when it finishes, the stimulation will make the Doctor's head explode.
Sarah rigs the wiring beneath the cell floor and sets a small fire to lure the android guard. He steps in the puddle of water and is electrocuted when Sarah applies the power cable. She makes her way to the Doctor and turns off the scan. She helps the disorientated [[Time Lord]] out of the base, heading for Crayford's rocket before it takes off. The rocket is launched, and the G-forces start to crush them.


Sarah rigs the wiring beneath the cell floor, and then sets a small fire to lure the android guard in. He steps in the puddle of water, and is electrocuted when Sarah applies the power cable. She makes her way to the Doctor and turns off the scan. She helps the disorientated [[Time Lord]] out of the base, heading for Crayford's rocket before it takes off. The rocket is launched, and the G-forces start to crush them.
=== Part four ===
Sarah blacks out but is awakened by the Doctor. He tells her that was nothing; there is a more dangerous ride ahead. Before the rocket lands, the pods will be ejected. The Doctor and Sarah will ride two of them to Earth to warn the real Defence Station. He cannot guarantee they will survive the trip. As they talk, neither notices a nearby pod open to reveal an android Doctor.


===Episode Four===
On Earth, [[Matthews (The Android Invasion)|Matthews]] at the Defence Station's scanner room picks up Crayford's rocket. [[Grierson]], the man in charge, informs Colonel Faraday. Meanwhile, having found the TARDIS in the woods near Devesham, Benton and Harry have been searching for the Doctor and Sarah, to no avail. Benton is worried. He has never known the Doctor to leave the TARDIS key in its lock.
Sarah blacks out, but is awakened by the Doctor. He tells her that was nothing; there is a more dangerous ride ahead. Before the rocket lands, the pods will be ejected, and the Doctor and Sarah will ride two of them to Earth to warn the real Defence Station, although he cannot guarantee they will survive the trip down. As they talk, neither notices a nearby pod open slightly to reveal an android Doctor. On Earth, [[Matthews]] at the Defence Station's scanner room picks up Crayford's rocket. [[Grierson]], the man in charge, informs Colonel Faraday. Meanwhile, having found the TARDIS in the woods near Devesham, Benton and Harry have been searching for the Doctor and Sarah, but to no avail. Benton is worried, as he has never known the Doctor to leave the TARDIS key in its lock.


Faraday welcomes Crayford home on the radio, but the signal is broken up by the "meteor shower" of pods which, unusually, slow down as they enter the atmosphere. Some of the pods land in a nearby field, and one opens up to reveal the Doctor. However, he is unable to find Sarah. Sarah, having landed elsewhere, finds the TARDIS in the woods. As she looks around, the Doctor taps her on the shoulder. However, this Doctor is an android, and behind it a pod opens to disgorge another Sarah replica. The real Sarah runs for it. The XK-5 re-establishes contact and comes in for a landing. Harry and Faraday head for the rocket, not knowing that Styggron is there with Crayford.
Faraday welcomes Crayford home on the radio, but the signal is broken up by the "meteor shower" of pods. Unusually, they slow as they enter the atmosphere. Some of the pods land in a nearby field. One opens up to reveal the Doctor. However, he is unable to find Sarah. Sarah, having landed elsewhere, finds the TARDIS in the woods. As she looks around, the Doctor taps her on the shoulder. However, this Doctor is an android. Behind it, a pod opens to disgorge another Sarah replica. The real Sarah runs for it. The XK-5 re-establishes contact and comes in for a landing. Harry and Faraday head for the rocket, not knowing that Styggron is there with Crayford.


The real Doctor enters the Station, and recognises the "dead" soldier. Showing him a pass, the Doctor tells the soldier that if he sees the Doctor again today he is to report it to him immediately. The Doctor goes to the scanner room, leaving the soldier puzzled. When Benton tells him where Harry and Faraday are, the Doctor contacts them on the radio and urges them not to enter the rocket. He will meet them at the lift.  
The real Doctor enters the station and recognises the "dead" soldier. The Doctor shows him a pass and tells him that if he sees the Doctor again today, he is to report it to him immediately. The Doctor goes to the scanner room, leaving the soldier puzzled. When Benton tells him where Harry and Faraday are, the Doctor contacts them on the radio and urges them not to enter the rocket. He will meet them at the lift.
[[File:Four and SJS AE 4.jpg|thumb|The Doctor and Sarah hide from their android duplicates.]]
While the Doctor gives Grierson instructions for modifying the radar dish, an android Matthews has incapacitated Benton and introduced an android replacement. Grierson says that if the Doctor points the dishes down here, it will jam every piece of electronic equipment for miles. Faraday returns to the scanner room, demanding an explanation. The Doctor tells them about the Kraal invasion. However, he is too late: Harry and Faraday have been replaced, and the android Doctor is pointing a gun at him. He slams the door in the android's face and leaps through a window. Outside, he meets Sarah. The Doctor tells Sarah their only chance is to stop the androids before they take over the complex. He runs back towards the scanner room, bluffing his way past "Benton" by posing as his duplicate. Sarah climbs up the rocket towards the real Harry and Styggron.


While the Doctor gives Grierson some instructions for modifying the radar dish, an android Matthews has incapacitated Benton and introduced an android replacement. Grierson says that if the Doctor points the dishes down here, it will jam every piece of electronic equipment for miles. Faraday returns to the scanner room, demanding an explanation. The Doctor tells them about the Kraal invasion. However, the Doctor is too late: Harry and Faraday have been replaced, and the android Doctor is pointing a gun at him. He slams the door in the android's face and leaps through a window. Outside, he meets Sarah. The Doctor tells Sarah their only chance is to stop the androids before they take over the complex, and runs back towards the scanner room, bluffing his way past "Benton" by posing as his duplicate. Sarah climbs up the rocket towards the real Harry and Styggron.
Grierson finishes his modifications but is shot in the shoulder by the android Doctor before he can turn on the power. The android is about to shoot the original when Crayford enters, saying Styggron promised no killing. The "Doctor" calls him a fool and tells him about the virus. Crayford cannot believe this, but the real Doctor tells him that his rocket was actually hijacked by the Kraals. They did not reconstruct him, they brainwashed him. Realising the truth, Crayford rushes out, distracting the android long enough for the Doctor to make his move. In the struggle, the Doctor activates the radar, jamming all the androids in mid-step.


Grierson finishes his modifications, but is shot in the shoulder by the android Doctor before he can turn on the power. The android is about to shoot the original when Crayford enters, saying that Styggron promised no killing. The "Doctor" calls him a fool, and tells him about the virus. Crayford cannot believe this, but the real Doctor tells him that his rocket was actually hijacked by the Kraal, and they did not reconstruct but merely brainwashed him. Realising the truth, Crayford rushes out, distracting the android long enough for the Doctor to make his move. In the struggle, the Doctor manages to activate the power to the radar, jamming all the androids in mid-step.
In the rocket, Sarah unties Harry and Faraday. Styggron enters, holding a ray gun on them, but Crayford appears and attacks him. The two grapple, and Styggron shoots Crayford. The Doctor makes his own entrance, punching the Kraal, who falls on the vial of virus, cracking it open. Styggron shoots the Doctor before he dies. Sarah is horrified, but the real Doctor shows up — he had programmed his duplicate to distract Styggron. The android disintegrates into its component parts.


In the rocket, Sarah unties Harry and Faraday. Styggron enters, holding a ray gun on them, but Crayford appears and attacks him. The two grapple and Styggron shoots Crayford. The Doctor makes his own entrance, punching the Kraal, who falls on the vial of virus, cracking it open. Styggron shoots the Doctor before he dies. Sarah is horrified, but the real Doctor shows up — he had programmed his duplicate to distract Styggron. As proof, the android disintegrates into its component parts.
Sarah and the Doctor make their way back to the TARDIS. Sarah says she is going to take a [[taxi]] home, but when the Doctor offers to take her home instead, she smiles, "How can I refuse?" They enter the ship, and it vanishes.


Sarah and the Doctor make their way back to the TARDIS. Sarah says she is going to take a taxi home, but when the Doctor offers to take her home instead, she smiles, "How can I refuse?" The two enter the ship and it vanishes.
== Cast ==
* [[Fourth Doctor|Doctor Who]] - [[Tom Baker]]
* [[Sarah Jane Smith]] - [[Elisabeth Sladen]]
* [[Harry Sullivan]] - [[Ian Marter]]
* [[Faraday|Colonel Faraday]] - [[Patrick Newell]]
* [[John Benton|RSM Benton]] - [[John Levene]]
* [[Guy Crayford]] - [[Milton Johns]]
* [[Adams (The Android Invasion)|Corporal Adams]] - [[Max Faulkner]]
* [[Morgan (The Android Invasion)|Morgan]] - [[Peter Welch]]
* [[Styggron]] - [[Martin Friend]]
* [[Grierson]] - [[Dave Carter]]
* [[Chedaki]] - [[Roy Skelton]]
* [[Kraal (species)|Kraal]] - [[Stuart Fell]]
* [[Matthews (The Android Invasion)|Matthews]] - [[Hugh Lund]]
* [[Tessa (The Android Invasion)|Tessa]] - [[Heather Emmanuel]]


==Cast==
=== Uncredited cast ===
*[[Fourth Doctor|The Doctor]] - [[Tom Baker]]
* [[Service mechanic]]s - [[Roy Pearce]], [[Keith Ashley]], [[Clinton Morris]], [[Derek Hunt]]
*[[Sarah Jane Smith]] - [[Elisabeth Sladen]]
*[[Harry Sullivan]] - [[Ian Marter]]
*Colonel [[Faraday]] - [[Patrick Newell]]
*RSM [[Benton]] - [[John Levene]]
*[[Guy Crayford]] - [[Milton Johns]]
*Corporal [[Adams]] - [[Max Faulkner]]
*[[Morgan (The Android Invasion)|Morgan]] - [[Peter Welch]]
*[[Styggron]] - [[Martin Friend]]
*[[Grierson]] - [[Dave Carter]]
*[[Chedaki]] - [[Roy Skelton]]
*[[Kraal]] - [[Stuart Fell]]
*[[Matthews]] - [[Hugh Lund]]
*[[Tessa]] - [[Heather Emmanuel]]
*[[Android]]s (uncredited) - [[Betsy White]], [[Ian Elliott]], [[Lewis Alexander]], [[George Ballantine]], [[Sue Manners]], [[Simon Christie]], [[Walter Goodman]], [[Margaret McKechnie]], [[Freddie White]], [[Martine Holland]], [[Mark Holmes]], [[Clinton Morris]], [[Roy Pearce]], [[Derek Hunt]], [[Keith Ashley]], [[Alan Jennings]], [[Henry Lindsay]]


==Crew==
== Crew ==
*[[Assistant Floor Manager]] - [[Felicity Trew]]
* [[Assistant Floor Manager]] - [[Felicity Trew]]
*[[Costumes]] - [[Barbara Lane]]
* [[Costumes]] - [[Barbara Lane]]
*[[Designer]] - [[Philip Lindley]]
* [[Designer (crew)|Designer]] - [[Philip Lindley]]
*[[Fight Arranger]] - [[Terry Walsh]]
* [[Fight Arranger]] - [[Terry Walsh]]
*[[Film Cameraman]] - [[Ken Newson]]
* [[Film Cameraman]] - [[Len Newson]]
*[[Film Editor]] - [[Mike Stoffer]]
* [[Film Editor]] - [[Mike Stoffer]]
*[[Incidental Music]] - [[Dudley Simpson]]
* [[Film sound|Film Sound]] - [[Doug Mawson]]
*[[Make-Up]] - [[Sylvia Thornton]]
* [[Incidental Music]] - [[Dudley Simpson]]
*[[Production Assistant]] - [[Marion McDougall]]
* [[Make-Up]] - [[Sylvia Thornton]]
*[[Special Sounds]] - [[Dick Mills]]
* [[Production Assistant]] - [[Marion McDougall]]
*[[Studio Lighting]] - [[Duncan Brown]]
* [[Special Sounds]] - [[Dick Mills]]
*[[Studio Sound]] - [[Alan Machin]]
* [[Studio Lighting]] - [[Duncan Brown]]
*[[Title Music]] - [[Ron Grainer]] and the [[BBC Radiophonic Workshop]], Arranged by [[Delia Derbyshire]]
* [[Studio Sound]] - [[Alan Machin]]
*[[Visual Effects]] - [[Len Hutton]]
* [[Doctor Who theme|Title Music]] - [[Ron Grainer]] and the [[BBC Radiophonic Workshop]], Arranged by [[Delia Derbyshire]]
*[[Writer]] - [[Terry Nation]]
* [[Visual Effects]] - [[Len Hutton]]
*[[Production Unit Manager]] - [[Janet Radenkovic]]
* [[Writer]] - [[Terry Nation]]
*[[Script Editor]] - [[Robert Holmes]]
* [[Production Unit Manager]] - [[Janet Radenkovic]]
*[[Director]] - [[Barry Letts]]
* [[Script Editor]] - [[Robert Holmes]]
*[[Producer]] - [[Philip Hinchcliffe]]
* [[Director (crew)|Director]] - [[Barry Letts]]
* [[Producer]] - [[Philip Hinchcliffe]]


==References==
=== Uncredited crew ===
*The Doctor likes [[tea]] and [[muffin]]s. He also likes and drinks [[ginger beer]], though Sarah does not.
* [[Floor assistant|Floor Assistants]] - [[Steven Fuller]], [[Peter Sofroniou]] ([[INFO]]: ''The Android Invasion'')
*Sarah once came to [[Devesham]] on a story (to cover the loss of [[XK-5 Space Freighter|XK-5]]). This story is referenced as a newspaper headline on the [http://www.bbc.co.uk/mediaselector/check//sja/media/newsscoop?size=16x9&bgc=C0C0C0&nbram=1&bbram=1&nbwm=1&bbwm=1 Sarah Jane Adventures] BBC website.
* [[Grams operator|Grams Operator]] - [[Gerry Borrows|Gerry Burrows]], [[Gordon Phillipson]] ([[INFO]]: ''The Android Invasion'')
*The [[Kraal]]s know of the [[Time Lord]]s, at least after they have scanned Sarah's memory.
* [[Make-up assistant|Make-Up Assistants]] - [[Sandra Burcham]], [[Jocelyn Cox]] ([[INFO]]: ''The Android Invasion'')
*[[Oseidon]] has the highest natural radiation level in the galaxy, but an [[Earth]] type atmosphere, gravity etc.
* [[Visual effects assistant|Visual Effects Assistant]] - [[Colin Mapson]], [[Laurie Warburton]] ([[INFO]]: ''The Android Invasion'')
*The [[Space Defence Station]] ([[British]], rather than UN) is an installation against alien attack, the only one of its kind in the world. [[The Brigadier]] has an office there (as a courtesy on a liaison basis).
* [[Studio Lighting]] Assistants - [[Dickie Ashman]], [[Alan Arbuthnott]] ([[INFO]]: ''The Android Invasion'')
*[[Space freighter]]s were being tested two years ago.
* [[Film Cameraman]]'s Assistant - [[Paul Godfrey]] ([[INFO]]: ''The Android Invasion'')
*Humans have got as far as orbiting [[Jupiter]].
* [[Film sound|Film Sound]] Assistant - [[Howard Gartska]] ([[INFO]]: ''The Android Invasion'')
* [[Director's assistant|Director's Assistant]] - [[Joy Sinclair]] ([[INFO]]: ''The Android Invasion'')
* [[Assistant Floor Manager]] - [[Felicity Trew]] ([[INFO]]: ''The Android Invasion'')
* [[Grip]]s - [[Roy Monks]] ([[INFO]]: ''The Android Invasion'')
* [[Inlay operator|Inlay Operators]] - [[Richard Broadhurst]], [[A. J. Mitchell|Mitch Mitchell]] ([[INFO]]: ''The Android Invasion'')
* [[Film operations manager|Film Ops Manager]] - [[Ian Brindle]] ([[INFO]]: ''The Android Invasion'')
* [[Costume dresser|Dressers]] - [[Moira Fitzgerald]], [[George Sheriffs]] ([[INFO]]: ''The Android Invasion'')
* [[Film operator|Film Operators]] - [[Leslie Baker]], [[Jimmy Guest]], [[Leslie Colliers]], [[Dick Norwood]] ([[INFO]]: ''The Android Invasion'')
* [[Senior cameraman|Senior Studio Cameraman]] - [[Peter Ware (camera operator)|Peter Ware]] ([[INFO]]: ''The Android Invasion'')
* [[Vision Mixer]] - [[Nick Lake]] ([[INFO]]: ''The Android Invasion'')


==Story Notes==
== Worldbuilding ==
*This story had working titles of; '''The Kraals''', '''The Kraal Invasion''', '''The Enemy Within''' and '''Return to Sukannan'''.
=== Foods and beverages ===
*The story was influenced by the film ''[[Wikipedia:Invasion of the Body Snatchers|Invasion of the Body Snatchers]]'', and would be the last [[Terry Nation]] script for ''Doctor Who'' for four years until his final script for the series, ''[[Destiny of the Daleks]]'' ([[1979]]). This was the first non-[[Dalek]] story scripted by Nation since [[1964]]'s ''[[The Keys of Marinus]]''.
* The Doctor likes [[tea]] and [[muffin]]s.
*This story marks the last appearances of [[John Levene]] ([[Sergeant Benton]]) and [[Ian Marter]] ([[Harry Sullivan]]) in the series. [[United Nations Intelligence Taskforce|UNIT]] would play a significant role in one more story, ''[[The Seeds of Doom]]'', and thereafter vanish (save for a cameo in ''[[The Five Doctors]]'') until [[1989]]'s ''[[Battlefield]]''. The characters were mentioned (but did not appear) in ''[[Mawdryn Undead]]'' ([[1983]]). Harry was said to be working with [[NATO]] and doing something "hush-hush at [[Porton Down]]". Benton was said to have left the army and become a used car salesman.
* The Doctor also likes and drinks [[ginger beer]], though Sarah does not.
*Benton's final appearance on-screen shows him being attacked, then left on the floor as he is replaced by his android double; his fate is not made clear at the end of the story. However, in ''[[Mawdryn Undead]]'' (1983), it is revealed that Benton eventually left the Army to become a used car salesman, so he presumably survived the experience.
*This was the first story to feature the return of a former companion, namely Harry Sullivan (Benton is not generally considered a formal companion). Harry also figured in montage sequences in ''[[Logopolis (TV story)|Logopolis]]'' and ''[[Resurrection of the Daleks]]''. Dialogue references to him would also be made in ''[[Mawdryn Undead]]'' and [[SJA]]: ''[[Invasion of the Bane]]'', with the latter also featuring a photograph of the character. In future years, the return of past companions would be a featured part of specials such as ''[[The Five Doctors]]'' and ''[[The Two Doctors]]'', and also be incorporated into several storylines of the 2005-present revival.
*Marter would continue his acting career and go on to write several ''Doctor Who'' novelisations, an original novel featuring Harry and an unproduced screenplay, ''[[Doctor Who Meets Scratchman]]'', the last with [[Tom Baker]]. He died in [[1986]].
*[[Kenneth Williams]] noted this story in his diaries, writing that ''Doctor Who'' was getting "more and more silly."
*This marks the first appearance of the Fourth Doctor's seldom-seen light gray overcoat.


===Ratings===
=== Individuals ===
*Part 1 - 11.9 million viewers
* The Doctor once met the [[Duke of Marlborough]].
*Part 2 - 11.3 million viewers
* The Doctor says he "always told [[Alexander Graham Bell|Alexander Bell]] that wires were unreliable".
*Part 3 - 12.1 million viewers
*Part 4 - 11.4 million viewers


===Myths===
=== Technology ===
*This story was originally written to feature the Daleks rather than the Kraals. ''(It wasn't.)''
* The androids receive their memory and intelligence from a [[pattern analyser]].
* The Kraals have developed [[artificial ivy]].
* The Doctor carries a [[robot detector]].


===Filming Locations===
== Story notes ==
*National Radiological Protection Board (now known as Radiation Protection Division), Didcot, Oxfordshire
* This story had working titles of: ''The Kraals'', ''The Kraal Invasion'' and ''The Enemy Within''. A rumoured working title was ''Return to Sukkannan'' (also sometimes referred to as ''Return to Suknan''<ref>[http://www.shannonsullivan.com/drwho/serials/4j.html ''The Android Invasion'', A Brief History of Time (Travel)]</ref> — correct spelling uncertain), but this was actually the title of a second storyline by Terry Nation which had been submitted to the ''Doctor Who'' production office at the same time but was apparently abandoned.
*Tubney Wood, Tubney, Oxfordshire (location where the TARDIS materialises)
* The story was influenced by the film {{wi|Invasion of the Body Snatchers}}<ref name="guide">{{cite web|url=http://www.bbc.co.uk/doctorwho/classic/episodeguide/androidinvasion/detail.shtml|title=The Android Invasion|website name=Doctor Who Classic Episode Guide|accessdate=1 December 2018}}</ref> and was the last [[Terry Nation]] script for ''Doctor Who'' for four years until his final script for the series, ''[[Destiny of the Daleks (TV story)|Destiny of the Daleks]]'' (1979). This was the first non-[[Dalek]] story scripted by Nation since 1964's ''[[The Keys of Marinus (TV story)|The Keys of Marinus]]'' and was his only other foray away from his most famous creations.
*Worsham Quarry, Witney, Oxfordshire (location where Kraal capsules arrive on Earth)
* This story marks the last appearances of [[John Levene]] ([[Sergeant Benton]]) and [[Ian Marter]] ([[Harry Sullivan]]) in the series. Both actors have told ''[[Doctor Who Magazine]]'' (#[[DWM 230|230]] and #[[DWM 93|93]] respectively) that they didn't enjoy the story: Levene, because Nicholas Courtney wasn't there; and Marter, because "There was no real reason for Harry to be in it... [he] couldn't see the point." The characters were mentioned (but did not appear) in ''[[Mawdryn Undead (TV story)|Mawdryn Undead]]'' (1983), when Harry was said to be working with [[NATO]] and doing something "very hush-hush at [[Porton Down]]", while Benton was said to have left the army and become a second-hand car salesman. Levene later reprised the role of Benton for the non-BBC independent video production, ''[[Wartime (home video)|Wartime]]''. However, in Marter's case, ''The Android Invasion'' was his final outing as Harry Sullivan — he dealt with diabetes later in life and passed away after suffering a heart attack on his 42nd birthday, 28 October 1986.
*East Hagbourne, Oxfordshire
* [[UNIT]] played a significant role in one more story, ''[[The Seeds of Doom (TV story)|The Seeds of Doom]]'', and thereafter vanished (save for a cameo in ''[[The Five Doctors (TV story)|The Five Doctors]]'') until 1989's ''[[Battlefield (TV story)|Battlefield]]''.
*Location filming for the Kraal-replicated village of Devesham took place in East Hagbourne, Oxfordshire, a few miles from Didcot.
* [[Barry Letts]] and [[Nicholas Courtney]] have both said in ''[[Doctor Who Magazine]]'' (#[[DWM 270|270]] and #[[DWM 228|228]] respectively) that the Brigadier was originally meant to be in the story. As Courtney had committed himself to a theatre tour, believing his ''Doctor Who'' days to be well and truly over, his part had to be replaced with Faraday (who was originally a Brigadier before being demoted to colonel). Courtney's other reason for turning the part down was because he'd been asked back for another story and then had his part cancelled at the last minute, having passed up other work, "and I was very annoyed". (DWM #228)
*[[BBC Television Centre]] (TC3, TC8), Shepherd's Bush, [[London]]
* This was the first story to feature the return of a former companion, namely Harry Sullivan (Benton is not generally considered a companion). Harry also featured in montage sequences in ''[[Logopolis (TV story)|Logopolis]]'' and ''[[Resurrection of the Daleks (TV story)|Resurrection of the Daleks]]''. Dialogue references to him would also be made in ''[[Mawdryn Undead (TV story)|Mawdryn Undead]]'' and the ''[[The Sarah Jane Adventures]]'' episode ''[[Invasion of the Bane (TV story)|Invasion of the Bane]]'', with the latter also featuring a photograph of the character. In future years, the return of past companions would be a featured part of specials such as ''[[The Five Doctors (TV story)|The Five Doctors]]'' and ''[[The Two Doctors (TV story)|The Two Doctors]]'', and also be incorporated into several storylines of the 2005-present revival.
* [[Ian Marter]] continued his acting career and wrote several ''Doctor Who'' novelisations, an original novel featuring Harry called ''[[Harry Sullivan's War (novel)|Harry Sullivan's War]]''; and an unproduced screenplay with [[Tom Baker]], ''[[Doctor Who Meets Scratchman]]''.
* {{w|Kenneth Williams}} noted this story in his diaries, writing that ''Doctor Who'' was getting "more and more silly".
* This marks the first appearance of the Fourth Doctor's seldom-seen light grey tweed coat.
* [[Elisabeth Sladen]] is credited as "Sarah" in ''Radio Times'' for part one.
* Although credited for part one, Dave Carter (Grierson) does not actually appear; his scenes having been edited out before transmission.
* [[Roy Skelton]] (Chedaki) is credited on-screen for part two, but is uncredited in ''Radio Times''.
* The Kraals were not featured in another ''Doctor Who'' story in any medium until the audio story ''[[The Oseidon Adventure (audio story)|The Oseidon Adventure]]'' in [[2012 (releases)|2012]].
* The story Sarah went to Devesham to cover is referenced as a newspaper headline on the [http://www.bbc.co.uk/mediaselector/check//sja/media/newsscoop?size=16x9&bgc=C0C0C0&nbram=1&bbram=1&nbwm=1&bbwm=1 Sarah Jane Adventures] BBC website.
* This is the first appearance of [[UNIT]] without [[Nicholas Courtney]] as [[Alistair Gordon Lethbridge-Stewart|the Brigadier]].
* Former producer [[Barry Letts]] returns as a director for this story.
* Originally, a key plot element was that the Kraal androids were in fact mirror images of the people they were imitating, and this was how the Doctor deduced that “Sarah Jane” was actually a robot. It was eventually decided that this would be too technically demanding to realise, and the action was suitably amended. The "mirror image" concept was reinstated for [[Terrance Dicks]]'s [[Doctor Who and the Android Invasion (novelisation)|novelisation]] of the story.
* [[Terry Nation]] envisaged the Kraals as somewhat insectoid in appearance, although this idea was not used in the design work.
* [[Ian Marter]] said he would have preferred it if Harry had died saving Sarah.
* [[Tom Baker]] and [[Elisabeth Sladen]] notoriously rewrote and ad-libbed most of their material due to hating the script, including the entire ending scene.
* [[Tom Baker]] actually submerged himself in the pond rather than have [[Terry Walsh]] double for him, despite having a phobia of water. Unfortunately, Baker inadvertently swallowed some of the stagnant water and had to be taken to the local hospital to have his stomach pumped — and he was suffering from a sore throat at the time. (This explains why Baker's voice sounds husky in some of the location scenes.)
* [[Philip Hinchcliffe]] later admitted that the demise of UNIT was handled badly. He was also unimpressed by the delivery of the Kraals' lines behind the masks.
* [[Terry Nation]] felt the story was a nice idea with an intriguing mystery, but didn't feel the end product quite fulfilled his vision.
* The first scene of main guest lead [[Guy Crayford]] was removed in post-production, and was also the first scene featuring Grierson. [[Dave Carter]] is still credited for part one despite his only scene being cut.
* Corporal Adams was originally a private and the script reveals his first name as Tom.
* [[Barry Letts]] liked the script, made it look pretty and was pleased that [[Terry Nation]] had come up with something different. He also liked the Kraals and wondered why they never made a reappearance.
* Time constraints meant that a scene in part four which would have explained how the Doctor reactivated his android duplicate, as well as accounting for the fate of the Kraal invasion armada, was cut.
* When writing the scene where the Doctor is held captive in the centre of the village, [[Terry Nation]] had been uncertain what kind of structure would be available to which the Doctor could be secured. He had assumed it would be smaller than the memorial cross ultimately used and so, in the script, Sarah rescued the Doctor simply by slipping the bindings over the top of the structure. The use of the sonic screwdriver was a late amendment to address the practicalities of the scene as filmed.
* [[Terry Nation]] drew on his that [[Soviet Union|the Soviet Union]] had constructed detailed replicas of Western towns in remote areas, as training grounds for sleeper agents.


===Discontinuity, Plot Holes, Errors===
=== Ratings ===
*The U.K. has never had a manned space program. ''The Who Universe does not run with events in our universe''
* Part one - 11.9 million viewers
*Why do they need to destroy their duplicate village? ''Why shouldn't they? It's safer not to leave random clues as to your plans laying around, even if you think its unlikely someone will find them.''
* Part two - 11.3 million viewers
*Chedaki and the rest of the fleet are left unmentioned at the end of the story, especially odd since the Doctor says the Kraals could take Earth by force if they wanted to.
* Part three - 12.1 million viewers
*As the ''Daily Mail'' reviewer in [[1975]] wondered, how can the Doctor use his own android against Styggron if all the androids have been neutralized? ''The neutralization of the androids did not require a continual interference field to be maintained. Once it had been switched on the androids automatically deactivated. All the Doctor had to do was switch-off the field and then re-activate his android.''
* Part four - 11.4 million viewers
*Crayford has never looked under his eye patch to find his intact eye! Nobody at Space Control notices this acquisition, either. ''The Doctor references that Crayford had been brainwashed. No one at Space Control has time to notice any changes before the invasion begins.''
*In part four, an android version of Sarah appears just after the real Sarah runs off after being confronted by an android version of the Doctor by the TARDIS. When the android Doctor appears inside Space Control, this android Sarah has vanished, and never appears again in the story. ''This android was not necessary at space control. It had instructions to infiltrate another installation.''
*Would Crayford really possess enough first hand information to recreate the village and the surrounding forest so completely? ''The mind analysis would provide more details than a human would consciously remember.'' And given the Kraal's remarkable attention to detail, would they have made such rudimentary errors with the fresh-mint money and the calendar? ''No one is perfect.'' Additionally, wouldn't there be every chance that his intel on the personnel present and the running of the space center be very much out of date after a two year absence? ''He has recently re-established communication with Earth, as is indicated.''
*What is the point of the elaborate village mock-up when they are only taking four androids with them anyway and their intentions are take over the whole planet, not just one small part of England? ''The invasion would have happened piecemeal. They would have begun with the space center, set-up a workshop for making more androids, taken over the village and started working gradually outward from there. They also are shown to have taken more than four androids.''
*How did the Kraals know to bring a duplicate android of Colonel Faraday as opposed to the Brigadier? They could not know the latter would be away at the time of Crayford's landing. Also, how did they know that he and Harry Sullivan would be first into the rocket ship and hence would be the very androids necessary to replace them. ''These details, as well as Crayford's presence, had already been discussed and agreed upon in one of Crayford's earlier radio conversations. Alternately, the form of the androids on board the rocket ship had not been fixed yet, and Styggron had the equipment to mold their shape to whatever form he needed once he'd captured whoever came aboard first.''
:''It's a pretty logical conclusion for them to have reached. Harry is one of the first into the ship because he is the medical officer, as stated. Faraday is the senior officer, hence is welcoming back the "returning hero".''
*If all Sarah-Jane's knowledge was absorbed into the Kraal computer, why not her dislike for ginger beer? ''No process or equipment works perfectly, as seen by some of the odd details and behavior earlier in the story.''
*Sarah putting her key in the TARDIS lock interrupts the 'pause control' so it continues on its journey to Earth. This seems a potentially very dangerous feature for the TARDIS. If there hadn't been any other means of transport available the Doctor &amp; Sarah-Jane would have been stranded forever. ''The TARDIS has a mind of its own and knew there was another means of transport available. Alternately, the Doctor had a chance to return to the TARDIS before being captured and set the controls to do this, so-as to prevent a duplicate gaining control of the TARDIS.''
*It is never explained why the TARDIS happens to materialize on the Kraal home world when they are on their way to Earth. If it is just a case of the TARDIS going astray as usual then it is quite a coincidence that they land smack-bang in the one part of the planet which so closely resembles Earth. ''This is just another example of the TARDIS's 'visual orientation circuits' (See [[Horror of Fang Rock]]) going wrong. They catch a glimpse of the Earth-like scene and mistake it for their destination.''
*If the Androids are created by scanning people's minds, then how do they have androids of the UNIT people and people in the village before they invade Earth?
*Why do they have people from the village - it's stated that they wanted the androids to take over key positions - ordinary people hardly qualify as people in high positions.
*Why doesn't Sarah tell the Doctor about the fake Doctor and Sarah when she meets him at the UNIt base in episode 4
*What happens to the Android Sarah in episode 4?
*Bad cutting makes it clear that sarah's fall and roll in episode one are not the same take as her hanging of the cliff
*Also, bad cutting makes it clear that the UNIT soldier does not jump off the cliff
*Why is he jumping off the cliff in the firt place?


==Continuity==
=== Myths ===
* Harry Sullivan and Sergeant Benton last appeared in [[DW]]: ''[[Terror of the Zygons]]''. This episode marks the first occasion in which a departed companion has returned to the series, albeit only as a guest.
* This story was originally written to feature the Daleks rather than the Kraals. ''(It wasn't.)''
* ''[[Mawdryn Undead]]'' would later establish that after the events of ''The Android Invasion'', Sullivan was seconded to do secret work for [[NATO]] and Benton left UNIT to sell cars. On-screen, while this is Sullivan's final appearance, Benton would later appear in the unofficial spin-off film ''[[Wartime]]'' in an adventure that takes place prior to his departure from UNIT.
* The [[sonic screwdriver]] has different settings, usable in different situations. The Doctor instructs Sarah to set it to "Theta Omega" to break the material he's bound by.


==Timeline==
=== Filming locations ===
*This story occurs after [[ST]]: ''[[Observer Effect]]''
* National Radiological Protection Board (now known as Radiation Protection Division), Didcot, Oxfordshire
*This story occurs before [[DWA]]: ''[[War on Aquatica]]''
* Tubney Wood, Tubney, Oxfordshire (location where the TARDIS materialises)
* Worsham Quarry, Witney, Oxfordshire (location where Kraal capsules arrive on Earth)
* East Hagbourne, Oxfordshire
* Location filming for the Kraal-replicated village of Devesham took place in East Hagbourne, Oxfordshire, a few miles from Didcot.
* [[BBC Television Centre]] (TC3, TC8), Shepherd's Bush, [[London]]


==DVD and Video Releases==
=== Production errors ===
''to be added''
{{discontinuity}}
* Bad editing makes it clear that Sarah's fall and roll in part one are not the same take as her hanging of the cliff.
* Also, bad editing makes it clear that the UNIT soldier does not jump off the cliff.
* Some of the things said in part one are out of sync.
* When the rocket is in view, the differences between model shots and archive footage are obvious.
* A gap between the bolt and the door jamb is visible after the service mechanics slide the bottom bolt of the cell door imprisoning the Doctor.
* Wires are visible on the darts that are in the bullseye of the dartboard in the pub.
* When Benton is supposedly knocked unconscious in part four, his eyes still flicker.
* Towards the end of part four, the android Doctor's uppercut clearly makes no contact with Styggron.


==Novelisation==
== Continuity ==
[[Image:Android Invasion novel.jpg|right|75px]]
* The Space Defence Station in Devesham was later bought by the space tourism billionaire [[Campbell Irons]] in the mid [[21st century]]. ([[AUDIO]]: ''[[The Feast of Axos (audio story)|The Feast of Axos]]'')
:''Main article: [[Doctor Who and the Android Invasion]]''
* The Doctor encountered the Kraals again in the company of [[Leela]]. ([[AUDIO]]: ''[[The Oseidon Adventure (audio story)|The Oseidon Adventure]]'')
* The Fourth Doctor later was duplicated by the [[Luron]], who created a biological replicant of him as part of their planned invasion of Earth in [[1979]]. ([[AUDIO]]: ''[[The Valley of Death (audio story)|The Valley of Death]]'')
* The Doctor and his [[companion]]s has been duplicated or impersonated by [[android]]s, [[human]]s, [[alien]]s and other methods/beings several times before and since. ([[TV]]: ''[[The Faceless Ones (TV story)|The Faceless Ones]]'', ''[[The Enemy of the World (TV story)|The Enemy of the World]]'', ''[[Journey's End (TV story)|Journey's End]]'', ''[[The Rebel Flesh (TV story)|The Rebel Flesh]]'' ''et al''.)
* The [[Fifth Doctor|Doctor]] orders ginger beer in other instances as his drink of preference. ([[AUDIO]]: ''[[The Eternal Summer (audio story)|The Eternal Summer]]'', ''[[Plague of the Daleks (audio story)|Plague of the Daleks]]'') He even used it on one occasion to aid in detoxifying the poison he had unwittingly been given. ([[TV]]: ''[[The Unicorn and the Wasp (TV story)|The Unicorn and the Wasp]]'')
* When Guy Crayford interrogates the Doctor, the Doctor mentions he is [[Alistair Gordon Lethbridge-Stewart|Brigadier Lethbridge-Stewart's]] and [[UNIT]]'s "unpaid [[scientific advisor]]". The Doctor would later find out from [[Kate Lethbridge-Stewart|Kate Lethbridge Stewart]] during a [[Cyberman]] invasion that he was, in fact, on the [[payroll]]. ([[TV]]: ''[[Death in Heaven (TV story)|Death in Heaven]]'')
* Guy Crayford mistakes the Doctor as human. This isn't the first time. [[Harry Sullivan]] made the same mistake before correcting himself when they were both captured. ([[TV]]: ''[[Genesis of the Daleks (TV story)|Genesis of the Daleks]]'')


*Novelised as ''[[Doctor Who and the Android Invasion]]'' by [[Terrance Dicks]], was published by [[Target Books]] in [[November]] [[1978]].
== Home video and audio releases ==
=== DVD releases ===
''The Android Invasion'' was released on DVD on [[9 January (releases)|9 January]] [[2012 (releases)|2012]] in the ''U.N.I.T Files'' Boxset with ''[[Invasion of the Dinosaurs (TV story)|Invasion of the Dinosaurs]]''.


==External Links==
==== Special Features ====
*[http://www.bbc.co.uk/doctorwho/classic/episodeguide/androidinvasion/ BBC Episode Guide to '''The Android Invasion''']
* Commentary by [[Milton Johns]] ([[Guy Crayford|Crayford]]), [[Martin Friend]] ([[Styggron]]), [[Marion McDougall]] (Production Assistant) and [[Philip Hinchcliffe]] (Producer), moderated by [[Toby Hadoke]]
*[http://www.gallifreyone.com/episode.php?id=4j Outpost Gallifrey Episode Guide: '''The Android Invasion''']
* ''[[The Village that Came to Life (documentary)|The Village that Came to Life]]'' - Cast, crew and local residents look back at the making of the story in this new documentary, presented on location by [[Nicholas Briggs]]
*[http://www.drwhoguide.com/who_4j.htm Doctor Who Reference Guide: Detailed Synopsis - '''The Android Invasion''']
* ''[[Life After Who: Philip Hinchcliffe (documentary)|Life After Who - Philip Hinchcliffe]]'' - The Producer recalls his distinguished career in British TV and film
*[http://www.shannonsullivan.com/drwho/serials/4j.html A Brief History of Time (Travel): '''The Android Invasion''']
* [[Secret Message from Time Lords (TV story)|Weetabix advert]]
*[http://www.doctorwholocations.net/stories/androidinvasion The Locations Guide to Doctor Who - '''The Android Invasion''']
* PDF Material - Two Weetabix ''[[Doctor Who]]'' promotions plus ''[[Radio Times]]'' listings (DVD-ROM)
* Production information subtitles
* Photo gallery
* Coming Soon trailer - ''[[The Sensorites (TV story)|The Sensorites]]''
* [[Easter Egg]]: 8-minute location sound rushes recording. To access this hidden feature, press right at Weetabix Advert on the Special features menu to reveal a hidden ''Doctor Who'' logo.
<gallery position="center" captionalign="center" hideaddbutton="true">
Android_invasion_region_2.jpg|''The Android Invasion'' Region 2 DVD Cover
The android invasion.jpg|''The Android Invasion'' Region 1 DVD Cover
Android invasion australia dvd.jpg|''The Android Invasion'' Region 4 DVD Cover
Unit_files_box_set.jpg|The U.N.I.T Files Boxset
</gallery>


=== Video releases ===
This story was released on VHS in the United Kingdom and Australia in [[1995 (releases)|1995]] and the US in [[1996 (releases)|1996]].


{{season 13}}
<gallery position="center" captionalign="center" hideaddbutton="true">
{{Wikipedia|The_Android_Invasion}}
File:The Android Invasion VHS UK cover.png|UK VHS cover
[[Category:Fourth Doctor episodes|Android Invasion, The]]
File:The Android Invasion VHS US cover.jpg|US VHS cover
[[Category:Sarah Jane Smith episodes|Android Invasion, The]]
The Andriod Invasion.jpg|AUS VHS release
[[Category:UNIT episodes|Android Invasion, The]]
</gallery>
[[Category:Stories set in England|Android Invasion, The]]
 
[[Category:1975 television stories|Android Invasion, The]]
== External links ==
* {{bbcepguideclassic|androidinvasion/|The Android Invasion}}
* {{radiotimes|2010-07-20/the-android-invasion|The Android Invasion}}
{{dwcast}}
{{dwrefguide|who_4j.htm|The Android Invasion}}
* {{briefhistory|serials/4j.html|The Android Invasion}}
* {{locguide|androidinvasion|The Android Invasion}}
 
== Footnotes ==
{{reflist}}
 
{{DWTV}}
{{UNIT stories}}
{{TitleSort}}
[[es:The Android Invasion]]
[[fr:The Android Invasion (TV)]]
[[ru:Вторжение андроидов]]
 
[[Category:Articles that were originally Wikipedia forks]]
[[Category:Doctor Who (1963) television stories]]
[[Category:UNIT television stories]]
[[Category:Stories set in England]]
[[Category:1975 television stories]]
[[Category:Season 13 stories]]
[[Category:Stories set in the 1980s]]
[[Category:Four part serials]]

Latest revision as of 20:06, 3 November 2024

RealWorld.png

You may be looking for the TV episode mentioned in The Girl Who Loved Doctor Who.

The Android Invasion was the fourth serial of season 13 of Doctor Who. The final regular UNIT-based story, it saw the final appearances of John Benton and Harry Sullivan in the classic series.

Synopsis[[edit] | [edit source]]

The Fourth Doctor and Sarah find themselves in the English village of Devesham near a Space Defence Station. The village seems deserted, the telephones don't work, calendars are stuck on the same date and white-suited figures are wandering about aimlessly. Who are the Kraals and what are their plans for Earth?

Plot[[edit] | [edit source]]

Part one[[edit] | [edit source]]

A UNIT soldier walks, as if in a trance, through the woods, his right arm twitching spasmodically. Nearby, the TARDIS materialises. The Doctor and Sarah step out. The Doctor explains that the coordinates were set for Sarah's time, but the linear coordinates were off. They could be miles from London. In any case, Sarah is glad to be back on Earth. The Doctor detects an odd reading of energy or radiation nearby.

The Doctor and Sarah meet four figures in white overalls and helmets with dark-tinted visors. When the Doctor asks them for directions, they shoot at the travellers with their index fingers. The Doctor and Sarah duck and run, with the four in pursuit. The two manage to lose them but Sarah slips down a hillside and clings to a cliff ledge. The Doctor helps her up. They see the soldier, jerkily making his way towards the cliff's edge. The Doctor shouts at him to stop, but he pays no heed. He runs over the cliff and falls to his death.

Androids attack the Doctor and Sarah.

The Doctor searches the body. He finds a wallet full of shiny, freshly minted coins, all dated the same year. They also spot a casket-shaped pod nearby, which the Doctor finds familiar. Before he can identify it, shots ring out. The white-suited figures have found them again. The Doctor and Sarah run again, avoiding their pursuers. They reach a village which Sarah recognises as Devesham. It lies about a mile from a Space Defence Station.

The village, however, is deathly quiet and seems empty. The Doctor decides to try the local pub, the Fleur-de-Lys, but it too is empty, and the Doctor finds the same freshly minted coins in the register. Sarah spots the white-overalled figures coming down the street, accompanied by the "dead" soldier. A large tradesman's pickup truck arrives, carrying on benches in the back what seem to be villagers, all in trances. Two of the white-overalled figures emerge from the truck's cab and help the villagers off; the villagers then distribute themselves around the village. Mr Morgan, the landlord of the pub, enters it with several other people while Sarah and the Doctor hide in the store room. The villagers take their seats silently, waiting motionless until the clock strikes eight, whereupon they suddenly come to life, acting normally.

The Doctor intends to get to the Space Defence Station and contact UNIT. He leaves, telling Sarah to meet him at the TARDIS if anything goes wrong. However, the "dead" soldier finds her in the store room and questions her. Morgan suggests that Sarah might be part of "the test". When Sarah asks what test, he tells Sarah that she should go.

Outside, Sarah hides behind the truck. She observes one of the white-overalled figures standing near the vehicle turn around. Its helmet visor is raised, but beneath is nothing but plastic and electronics. Sarah runs for the woods, reaching the TARDIS. She spots a similar pod next to the time machine and goes to examine it, leaving the TARDIS key in the lock. Suddenly, the TARDIS dematerialises. As Sarah is still trying to understand why, a hand reaches out from the pod. Startled, Sarah sees a man lying inside. When she goes closer and asks the man if she can help him, he grabs her by the throat. Sarah breaks free and runs.

At the Defence Station, the Doctor asks a soldier where the commanding officer is. The soldier just stares ahead, unresponsive. Also inside the building, Senior Defence Astronaut Guy Crayford is addressed by a disembodied voice. The voice, named Styggron, tells him there is a random "unit" within the complex and orders him to check it out.

The Doctor enters an office marked as being that of Brigadier Lethbridge-Stewart. It is empty. Crayford enters and points a gun at him. The Doctor introduces himself as UNIT's scientific advisor. Crayford has heard of him, but as the Brigadier is in Geneva, and Colonel Faraday is in command, there is no-one to confirm the Doctor's identity; he could be an impostor. Before Crayford can have the Doctor taken to detention, the Doctor flips the desk over and runs. He makes it outside before he is recaptured by the white-overalled figures. Sarah sees this and sneaks into the building. She goes to the Doctor's cell and unlocks the door to let him out. Behind them, a communicator on a wall swings back to reveal a stony alien face observing them.

Part two[[edit] | [edit source]]

Styggron contacts Crayford again, complaining about a second random unit. Crayford identifies these random units as the Doctor and Sarah. The alarm sounds, indicating the Doctor's escape. Crayford sends his UNIT soldiers to stop them. Hiding in a storage cupboard, the Doctor tells Sarah about Crayford. She says it is impossible. Crayford was in deep space testing the XK-5 space freighter when it vanished, presumed to be destroyed. The Doctor and Sarah venture out to find RSM Benton standing in the reception area. He points a pistol at them. Styggron wants the Doctor captured alive. When Crayford cancels the kill order, Benton seems to be dizzy, giving the Doctor and Sarah a chance to run away. Crayford orders Harry Sullivan to cordon off the perimeter road.

The Doctor and Sarah decide to return to the village and warn London. They are pursued by tracker dogs. Sarah twists her ankle in the woods, and this slows her down. The Doctor hides her in a tree, taking her scarf to draw the dogs away. He hides by submerging himself in a pond and the dogs lose his trail. Unfortunately, when the soldiers turn back, they spot Sarah and capture her. Styggron tells Crayford to locate, but not seize, the Doctor. He has other plans for him.

Styggron examines a groggy "patient".

Meanwhile, in an alien-looking room, Sarah is strapped to a table. Harry tells her it is no use to struggle. Under Styggron's order, he starts the scan. In the village, the Doctor finds the telephones are not working. He meets Morgan, who tells him the lines are down after a gale. Styggron speaks to another of his kind, Chedaki, who feels the time for experiments are over. Styggron insists that they must confirm their techniques as flawless if they are to conquer worlds other than Earth. Styggron contacts Crayford and tells him to commence the final test.

In the pub, the Doctor finds more oddities: an unused dart board, plastic horse brass on the wall and a tear-off calendar with only one date. The telephone rings, and Morgan answers it. The call is for the Doctor. It is Sarah, who tells him she was captured but escaped. She asks the Doctor to meet her by the village shop and to be careful of the robots. He hangs up and finds that the telephone has stopped working again. The Doctor meets Sarah, who explains how she escaped. The Doctor remarks on the providence of her finding the only telephone in the village that worked. He believes they are being tested to find out how smart they are.

He decides to take Sarah to the TARDIS and use the radio there. However, the TARDIS is gone. The Doctor is puzzled: the ship is not programmed to auto-operate, unless... He asks Sarah for her TARDIS key. When she claims she has lost it, the Doctor tells her she never had it. When Sarah put the key in the lock and left it there, she cancelled the TARDIS's pause control, and it continued its journey to Earth. This is not Earth, this is not a real forest, and she is not the real Sarah. The imposter responds by drawing a pistol on The Doctor, who explains that he knew immediately that it was not the genuine article; the real Sarah wasn't wearing her scarf, which he pulls out of his coat pocket. Knocking the pistol out of the imposter's hand, he grabs it by the shoulders and demands to know where the real Sarah is. The imposter pulls free but falls to the ground, its face popping open to reveal the electronics underneath.

Part three[[edit] | [edit source]]

The android Sarah rises to its feet and fires its pistol at the Doctor's retreating form. Chedaki tells Styggron it was a foolish experiment. The Doctor could undo their plans. Styggron dismisses this. The village and the Doctor will be destroyed by a matter-dissolving bomb. The real Sarah is being kept alive so Styggron can test the virus he intends to use to cleanse the Earth of human life. All the while, Sarah is feigning unconsciousness and listening. When the coast is clear, she gets up and sneaks away.

The Doctor watches the truck drive into the village and evacuate the androids to the Kraal base. The Doctor is grabbed from behind by Styggron, who gets two of the white-overalled figures to tie him up while the Kraal places the bomb at the Doctor's feet. Luckily, Sarah has made it back to the village. She uses the Doctor's sonic screwdriver to cut his bonds. They run into the base and shut the door as the village dissolves into a wasteland.

The duplicate Devesham disappears.

However, the two are surrounded by androids, who escort them to a cell. The Doctor tells Sarah that he should have realised — the radiation levels he picked up when they landed were those of Oseidon, the Kraal planet. The levels are increasing, and the planet will soon be uninhabitable. This is why the Kraals are invading Earth. The duplicated village and their androids are a training ground.

Crayford enters the cell and tells the Doctor that it is all for the best. Soon, the Kraals will send his ship back by space-time warp so he can make a normal landing. He has recently established radio contact with Earth. He fed them a story of how his ship was trapped in an orbit around Jupiter and he survived by rationing his supplies and recycling his water. With the world's attention focused on his landing, the space shells containing the androids will be taken for meteorites. The androids will emerge and pave the way for the main invasion fleet. He is helping the Kraals because, while Earth left him for dead, the Kraals rescued his ship and rebuilt his body. The Kraals only want to survive and have also promised him no humans will be harmed as long as they obey.

Styggron gets "Harry" to place a drop of the virus in a jug of water to be taken to the cell. Meanwhile, although the sonic screwdriver is useless on the door, the Doctor has removed a floor plate. He intends to use the wiring below to electrocute their android guard. "Harry" enters with the water and to take the Doctor away. Before the Doctor goes, he tells Sarah not to waste the water.

The Doctor is strapped to the Kraal analysis table. It will copy all his knowledge and experience. Despite what Styggron has told Crayford, he reveals he does intend genocide. Earth's resources are too limited to be wasted on an "inferior species". The virus, distributed by androids, will wipe the Earth clean in three weeks, then burn itself out. Styggron will signal the invasion fleet. Styggron leaves the machine to do its work. When it finishes, the stimulation will make the Doctor's skull burst.

Sarah rigs the wiring beneath the cell floor and sets a small fire to lure the android guard. He steps in the puddle of water and is electrocuted when Sarah applies the power cable. She makes her way to the Doctor and turns off the scan. She helps the disorientated Time Lord out of the base, heading for Crayford's rocket before it takes off. The rocket is launched, and the G-forces start to crush them.

Part four[[edit] | [edit source]]

Sarah blacks out but is awakened by the Doctor. He tells her that was nothing; there is a more dangerous ride ahead. Before the rocket lands, the pods will be ejected. The Doctor and Sarah will ride two of them to Earth to warn the real Defence Station. He cannot guarantee they will survive the trip. As they talk, neither notices a nearby pod open to reveal an android Doctor.

On Earth, Matthews at the Defence Station's scanner room picks up Crayford's rocket. Grierson, the man in charge, informs Colonel Faraday. Meanwhile, having found the TARDIS in the woods near Devesham, Benton and Harry have been searching for the Doctor and Sarah, to no avail. Benton is worried. He has never known the Doctor to leave the TARDIS key in its lock.

Faraday welcomes Crayford home on the radio, but the signal is broken up by the "meteor shower" of pods. Unusually, they slow as they enter the atmosphere. Some of the pods land in a nearby field. One opens up to reveal the Doctor. However, he is unable to find Sarah. Sarah, having landed elsewhere, finds the TARDIS in the woods. As she looks around, the Doctor taps her on the shoulder. However, this Doctor is an android. Behind it, a pod opens to disgorge another Sarah replica. The real Sarah runs for it. The XK-5 re-establishes contact and comes in for a landing. Harry and Faraday head for the rocket, not knowing that Styggron is there with Crayford.

The real Doctor enters the station and recognises the "dead" soldier. The Doctor shows him a pass and tells him that if he sees the Doctor again today, he is to report it to him immediately. The Doctor goes to the scanner room, leaving the soldier puzzled. When Benton tells him where Harry and Faraday are, the Doctor contacts them on the radio and urges them not to enter the rocket. He will meet them at the lift.

The Doctor and Sarah hide from their android duplicates.

While the Doctor gives Grierson instructions for modifying the radar dish, an android Matthews has incapacitated Benton and introduced an android replacement. Grierson says that if the Doctor points the dishes down here, it will jam every piece of electronic equipment for miles. Faraday returns to the scanner room, demanding an explanation. The Doctor tells them about the Kraal invasion. However, he is too late: Harry and Faraday have been replaced, and the android Doctor is pointing a gun at him. He slams the door in the android's face and leaps through a window. Outside, he meets Sarah. The Doctor tells Sarah their only chance is to stop the androids before they take over the complex. He runs back towards the scanner room, bluffing his way past "Benton" by posing as his duplicate. Sarah climbs up the rocket towards the real Harry and Styggron.

Grierson finishes his modifications but is shot in the shoulder by the android Doctor before he can turn on the power. The android is about to shoot the original when Crayford enters, saying Styggron promised no killing. The "Doctor" calls him a fool and tells him about the virus. Crayford cannot believe this, but the real Doctor tells him that his rocket was actually hijacked by the Kraals. They did not reconstruct him, they brainwashed him. Realising the truth, Crayford rushes out, distracting the android long enough for the Doctor to make his move. In the struggle, the Doctor activates the radar, jamming all the androids in mid-step.

In the rocket, Sarah unties Harry and Faraday. Styggron enters, holding a ray gun on them, but Crayford appears and attacks him. The two grapple, and Styggron shoots Crayford. The Doctor makes his own entrance, punching the Kraal, who falls on the vial of virus, cracking it open. Styggron shoots the Doctor before he dies. Sarah is horrified, but the real Doctor shows up — he had programmed his duplicate to distract Styggron. The android disintegrates into its component parts.

Sarah and the Doctor make their way back to the TARDIS. Sarah says she is going to take a taxi home, but when the Doctor offers to take her home instead, she smiles, "How can I refuse?" They enter the ship, and it vanishes.

Cast[[edit] | [edit source]]

Uncredited cast[[edit] | [edit source]]

Crew[[edit] | [edit source]]

Uncredited crew[[edit] | [edit source]]

Worldbuilding[[edit] | [edit source]]

Foods and beverages[[edit] | [edit source]]

Individuals[[edit] | [edit source]]

Technology[[edit] | [edit source]]

Story notes[[edit] | [edit source]]

  • This story had working titles of: The Kraals, The Kraal Invasion and The Enemy Within. A rumoured working title was Return to Sukkannan (also sometimes referred to as Return to Suknan[1] — correct spelling uncertain), but this was actually the title of a second storyline by Terry Nation which had been submitted to the Doctor Who production office at the same time but was apparently abandoned.
  • The story was influenced by the film Invasion of the Body Snatchers[2] and was the last Terry Nation script for Doctor Who for four years until his final script for the series, Destiny of the Daleks (1979). This was the first non-Dalek story scripted by Nation since 1964's The Keys of Marinus and was his only other foray away from his most famous creations.
  • This story marks the last appearances of John Levene (Sergeant Benton) and Ian Marter (Harry Sullivan) in the series. Both actors have told Doctor Who Magazine (#230 and #93 respectively) that they didn't enjoy the story: Levene, because Nicholas Courtney wasn't there; and Marter, because "There was no real reason for Harry to be in it... [he] couldn't see the point." The characters were mentioned (but did not appear) in Mawdryn Undead (1983), when Harry was said to be working with NATO and doing something "very hush-hush at Porton Down", while Benton was said to have left the army and become a second-hand car salesman. Levene later reprised the role of Benton for the non-BBC independent video production, Wartime. However, in Marter's case, The Android Invasion was his final outing as Harry Sullivan — he dealt with diabetes later in life and passed away after suffering a heart attack on his 42nd birthday, 28 October 1986.
  • UNIT played a significant role in one more story, The Seeds of Doom, and thereafter vanished (save for a cameo in The Five Doctors) until 1989's Battlefield.
  • Barry Letts and Nicholas Courtney have both said in Doctor Who Magazine (#270 and #228 respectively) that the Brigadier was originally meant to be in the story. As Courtney had committed himself to a theatre tour, believing his Doctor Who days to be well and truly over, his part had to be replaced with Faraday (who was originally a Brigadier before being demoted to colonel). Courtney's other reason for turning the part down was because he'd been asked back for another story and then had his part cancelled at the last minute, having passed up other work, "and I was very annoyed". (DWM #228)
  • This was the first story to feature the return of a former companion, namely Harry Sullivan (Benton is not generally considered a companion). Harry also featured in montage sequences in Logopolis and Resurrection of the Daleks. Dialogue references to him would also be made in Mawdryn Undead and the The Sarah Jane Adventures episode Invasion of the Bane, with the latter also featuring a photograph of the character. In future years, the return of past companions would be a featured part of specials such as The Five Doctors and The Two Doctors, and also be incorporated into several storylines of the 2005-present revival.
  • Ian Marter continued his acting career and wrote several Doctor Who novelisations, an original novel featuring Harry called Harry Sullivan's War; and an unproduced screenplay with Tom Baker, Doctor Who Meets Scratchman.
  • Kenneth Williams noted this story in his diaries, writing that Doctor Who was getting "more and more silly".
  • This marks the first appearance of the Fourth Doctor's seldom-seen light grey tweed coat.
  • Elisabeth Sladen is credited as "Sarah" in Radio Times for part one.
  • Although credited for part one, Dave Carter (Grierson) does not actually appear; his scenes having been edited out before transmission.
  • Roy Skelton (Chedaki) is credited on-screen for part two, but is uncredited in Radio Times.
  • The Kraals were not featured in another Doctor Who story in any medium until the audio story The Oseidon Adventure in 2012.
  • The story Sarah went to Devesham to cover is referenced as a newspaper headline on the Sarah Jane Adventures BBC website.
  • This is the first appearance of UNIT without Nicholas Courtney as the Brigadier.
  • Former producer Barry Letts returns as a director for this story.
  • Originally, a key plot element was that the Kraal androids were in fact mirror images of the people they were imitating, and this was how the Doctor deduced that “Sarah Jane” was actually a robot. It was eventually decided that this would be too technically demanding to realise, and the action was suitably amended. The "mirror image" concept was reinstated for Terrance Dicks's novelisation of the story.
  • Terry Nation envisaged the Kraals as somewhat insectoid in appearance, although this idea was not used in the design work.
  • Ian Marter said he would have preferred it if Harry had died saving Sarah.
  • Tom Baker and Elisabeth Sladen notoriously rewrote and ad-libbed most of their material due to hating the script, including the entire ending scene.
  • Tom Baker actually submerged himself in the pond rather than have Terry Walsh double for him, despite having a phobia of water. Unfortunately, Baker inadvertently swallowed some of the stagnant water and had to be taken to the local hospital to have his stomach pumped — and he was suffering from a sore throat at the time. (This explains why Baker's voice sounds husky in some of the location scenes.)
  • Philip Hinchcliffe later admitted that the demise of UNIT was handled badly. He was also unimpressed by the delivery of the Kraals' lines behind the masks.
  • Terry Nation felt the story was a nice idea with an intriguing mystery, but didn't feel the end product quite fulfilled his vision.
  • The first scene of main guest lead Guy Crayford was removed in post-production, and was also the first scene featuring Grierson. Dave Carter is still credited for part one despite his only scene being cut.
  • Corporal Adams was originally a private and the script reveals his first name as Tom.
  • Barry Letts liked the script, made it look pretty and was pleased that Terry Nation had come up with something different. He also liked the Kraals and wondered why they never made a reappearance.
  • Time constraints meant that a scene in part four which would have explained how the Doctor reactivated his android duplicate, as well as accounting for the fate of the Kraal invasion armada, was cut.
  • When writing the scene where the Doctor is held captive in the centre of the village, Terry Nation had been uncertain what kind of structure would be available to which the Doctor could be secured. He had assumed it would be smaller than the memorial cross ultimately used and so, in the script, Sarah rescued the Doctor simply by slipping the bindings over the top of the structure. The use of the sonic screwdriver was a late amendment to address the practicalities of the scene as filmed.
  • Terry Nation drew on his that the Soviet Union had constructed detailed replicas of Western towns in remote areas, as training grounds for sleeper agents.

Ratings[[edit] | [edit source]]

  • Part one - 11.9 million viewers
  • Part two - 11.3 million viewers
  • Part three - 12.1 million viewers
  • Part four - 11.4 million viewers

Myths[[edit] | [edit source]]

  • This story was originally written to feature the Daleks rather than the Kraals. (It wasn't.)

Filming locations[[edit] | [edit source]]

  • National Radiological Protection Board (now known as Radiation Protection Division), Didcot, Oxfordshire
  • Tubney Wood, Tubney, Oxfordshire (location where the TARDIS materialises)
  • Worsham Quarry, Witney, Oxfordshire (location where Kraal capsules arrive on Earth)
  • East Hagbourne, Oxfordshire
  • Location filming for the Kraal-replicated village of Devesham took place in East Hagbourne, Oxfordshire, a few miles from Didcot.
  • BBC Television Centre (TC3, TC8), Shepherd's Bush, London

Production errors[[edit] | [edit source]]

If you'd like to talk about narrative problems with this story — like plot holes and things that seem to contradict other stories — please go to this episode's discontinuity discussion.
  • Bad editing makes it clear that Sarah's fall and roll in part one are not the same take as her hanging of the cliff.
  • Also, bad editing makes it clear that the UNIT soldier does not jump off the cliff.
  • Some of the things said in part one are out of sync.
  • When the rocket is in view, the differences between model shots and archive footage are obvious.
  • A gap between the bolt and the door jamb is visible after the service mechanics slide the bottom bolt of the cell door imprisoning the Doctor.
  • Wires are visible on the darts that are in the bullseye of the dartboard in the pub.
  • When Benton is supposedly knocked unconscious in part four, his eyes still flicker.
  • Towards the end of part four, the android Doctor's uppercut clearly makes no contact with Styggron.

Continuity[[edit] | [edit source]]

Home video and audio releases[[edit] | [edit source]]

DVD releases[[edit] | [edit source]]

The Android Invasion was released on DVD on 9 January 2012 in the U.N.I.T Files Boxset with Invasion of the Dinosaurs.

Special Features[[edit] | [edit source]]

  • The Android Invasion Region 2 DVD Cover

    The Android Invasion Region 2 DVD Cover

  • The Android Invasion Region 1 DVD Cover

    The Android Invasion Region 1 DVD Cover

  • The Android Invasion Region 4 DVD Cover

    The Android Invasion Region 4 DVD Cover

  • The U.N.I.T Files Boxset

    The U.N.I.T Files Boxset

Video releases[[edit] | [edit source]]

This story was released on VHS in the United Kingdom and Australia in 1995 and the US in 1996.

  • UK VHS cover

    UK VHS cover

  • US VHS cover

    US VHS cover

  • AUS VHS release

    AUS VHS release

External links[[edit] | [edit source]]

Footnotes[[edit] | [edit source]]

  1. ↑ The Android Invasion, A Brief History of Time (Travel)
  2. ↑ The Android Invasion. Doctor Who Classic Episode Guide. Retrieved on 1 December 2018.
v • e
Doctor Who television stories
 
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Season 4: 1966-1967
Season 5: 1967-1968
Season 6: 1968-1969
 
Seasons 7-11: Jon Pertwee
Season 7: 1970
Season 8: 1971
Season 9: 1972
Season 10: 1972-1973
Season 11: 1973-1974
 
Seasons 12-18: Tom Baker
Season 12: 1974-1975
Season 13: 1975-1976
Season 14: 1976-1977
Season 15: 1977-1978
Season 16: 1978-1979
Season 17: 1979-1980
Season 18: 1980-1981
 
Seasons 19-21: Peter Davison
Season 19: 1982
Season 20: 1983
Children in Need 1983
Season 21: 1984
 
Seasons 21-23: Colin Baker
Season 21: 1984
Season 22: 1985
Season 23: 1986
 
Seasons 24-26: Sylvester McCoy
Season 24: 1987
Season 25: 1988-1989
Season 26: 1989
 
TV Movie & 2013 specials: Paul McGann
TV Movie: 1996
Specials: 2013
Minisodes
 
Series 1: Christopher Eccleston
Series 1: 2005
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Series 2: 2005-2006
Minisode
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Minisode
Christmas Special
Regular episodes
Minisodes
Animated special
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Series 5-2013 specials: Matt Smith
Series 5: 2010
Regular episodes
Series 6: 2010-2011
Christmas Special
Minisodes
Regular episodes
(Part 1: Apr 2011)
Regular episodes
(Part 2: Aug 2011)
Minisode
Series 7: 2011-2013
Christmas Special
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Regular episodes
(Part 1: 2012)
Minisode
Christmas Special
Regular episodes
(Part 2: 2013)
Specials: 2013
 
Series 8-10: Peter Capaldi
Series 8: 2014
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Series 9: 2014-2015
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Minisode
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Series 11: 2018-2019
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Series 13: 2021
Minisodes
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Seasonal specials
 
60th Anniversary Specials: David Tennant
Specials: 2023
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60th Anniversary Specials
 
Season 1 (2023)-present: Ncuti Gatwa
Season 1: 2023-2024
Christmas Special
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