The Poison Sky (TV story): Difference between revisions
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* This is the second part of a story which began with ''[[The Sontaran Stratagem]]''. | * This is the second part of a story which began with ''[[The Sontaran Stratagem]]''. | ||
* This episode and ''[[The Sontaran Stratagem]]'' are [[Douglas Mackinnon]]'s directorial debut. | * This episode and ''[[The Sontaran Stratagem]]'' are [[Douglas Mackinnon]]'s directorial debut. | ||
* When the Doctor cuts off Staal's speech on the video screen in mid flow, a clip from {{w|CBeebies}} cartoon | * When the Doctor cuts off Staal's speech on the video screen in mid flow, a clip from {{w|CBeebies}} cartoon {{wi|Tommy Zoom}} is featured. The original plan to use a clip from {{wi|Shaun the Sheep}} fell through. | ||
* [[Billie Piper]] appears very briefly as [[Rose Tyler]] on the TARDIS' screen in this episode. She receives screen credit, and is fourth-billed, for a performance that lasts less than one second and which was actually shot for another episode. | * [[Billie Piper]] appears very briefly as [[Rose Tyler]] on the TARDIS' screen in this episode. She receives screen credit, and is fourth-billed, for a performance that lasts less than one second and which was actually shot for another episode. | ||
* According to [[Russell T Davies]] in an interview in [[DWM 396]], the cameo by Rose was not in the original edit of the episode, but was added just before broadcast when Davies learned how successful her unbilled cameo in ''[[Partners in Crime]]'' was. Although it was reported that the clip came from "an untransmitted scene" from another episode, in fact, according to the DVD commentary for ''[[Midnight (TV story)|Midnight]]'', the scene was shot especially for ''Midnight'' during production of ''[[Turn Left]]'' and Davies dropped the scene into ''The Poison Sky'', too. Davies said that, like ''Partners in Crime'', advance review copies of this episode did not include the cameo. This scene was directed by [[Alice Troughton]]. | * According to [[Russell T Davies]] in an interview in [[DWM 396]], the cameo by Rose was not in the original edit of the episode, but was added just before broadcast when Davies learned how successful her unbilled cameo in ''[[Partners in Crime]]'' was. Although it was reported that the clip came from "an untransmitted scene" from another episode, in fact, according to the DVD commentary for ''[[Midnight (TV story)|Midnight]]'', the scene was shot especially for ''Midnight'' during production of ''[[Turn Left]]'' and Davies dropped the scene into ''The Poison Sky'', too. Davies said that, like ''Partners in Crime'', advance review copies of this episode did not include the cameo. This scene was directed by [[Alice Troughton]]. | ||
* The music that plays when the ''Valiant'' appears is strikingly similar to "The Master Tape", one of Murray Gold's musical themes for the Master. The Master helped design the''Valiant''. | * The music that plays when the ''Valiant'' appears is strikingly similar to "The Master Tape", one of Murray Gold's musical themes for the Master. The Master helped design the ''Valiant''. | ||
* When Martha Jones wears the Doctor's jacket at the end of the episode, she says she feels like "a kid in my Dad's clothes." The following episode features (and it titled after) an actual daughter of the Doctor. | * When Martha Jones wears the Doctor's jacket at the end of the episode, she says she feels like "a kid in my Dad's clothes." The following episode features (and it titled after) an actual daughter of the Doctor. | ||
* This is the first episode to feature [[Billie Piper]], [[Freema Agyeman]], and [[Catherine Tate]] all together as [[Rose Tyler|Rose]], [[Martha Jones|Martha]], and [[Donna Noble|Donna]], respectively. It is not, however, the first ''story ''in which all three ''actresses ''appear, as they all appear in ''[[Army of Ghosts]]/[[Doomsday]]. '' | * This is the first episode to feature [[Billie Piper]], [[Freema Agyeman]], and [[Catherine Tate]] all together as [[Rose Tyler|Rose]], [[Martha Jones|Martha]], and [[Donna Noble|Donna]], respectively. It is not, however, the first ''story ''in which all three ''actresses ''appear, as they all appear in ''[[Army of Ghosts]]/[[Doomsday]]. '' | ||
Revision as of 22:32, 2 May 2015
The Poison Sky was the fifth episode of the fourth series of Doctor Who. It was the only episode of the season to not reference the Missing Planets arc. It saw the Doctor's life saved again by and at the cost of the life of another person. There was also a second, fleetingly brief cameo made by Billie Piper as Rose Tyler, foreshadowing a major story arc development ahead.
This episode left a loose end about the Sontarans' defeat that was used in The Sarah Jane Adventures story TV: The Last Sontaran.
Synopsis
As the poisonous gas from the Tenth Sontaran Battle Fleet's ATMOS continues to thicken throughout the world, a clone of Martha Jones works in the shadows to support them. Will the Tenth Doctor learn about Martha's replacement? And can he figure out what the gas is made of, and destroy it before the entire planet chokes to death? More importantly, can the Doctor stop UNIT from starting an interplanetary war with the deadly Sontarans? It's all down to Donna Noble and child genius Luke Rattigan to fix things before it's too late...
Plot
The Tenth Doctor continues sonicking the car in his attempt to free Wilf from it before he chokes on the gas. However, it proves useless as Sylvia frees Wilf from the car by smashing the window with an axe she keeps in case of burglars. Ross arrives in a taxi, the only thing he could find not fitted with ATMOS. Despite Sylvia's protests, Donna goes with the Doctor back to the ATMOS factory with her grandfather's support.
Arriving at the factory, the Doctor gives Donna a key to the TARDIS so she can wait without choking on the air. Donna manages to enter the TARDIS just as she began coughing hard from the gas. In the meantime, Clone Martha overhears a radio transmission of the Doctor's arrival and tells Colonel Mace the previous message the Doctor gave her: Code Red Sontaran. Rushing into the mobile base, the Doctor tells Mace not to engage the Sontarans in battle. When questioned about what he plans to do, the Doctor says he'll use the TARDIS to get on their ship to talk with them.
Martha's clone subtly gives orders to the hypnotised UNIT soldiers Harris and Gray to put teleport relays on the TARDIS for the Sontarans to beam it up. Once done, Donna feels a shake from the teleport. The Sontarans gloat over having the Doctor's infamous vessel. The Doctor and Clone Martha arrive to find the TARDIS gone. Knowing he is trapped, the Doctor tries to goad the Sontarans into revealing their plan. The Sontarans do not to fall prey to this ploy, but they move the TARDIS out of the main war room, placing Donna in a position to help.
Against the Doctor's advice, UNIT decides to use nuclear weapons against the Sontarans; however, Martha's clone has covertly copied the launch codes, and stops every attempt they make to fire the weapons. The Sontarans mobilise troops to retrieve and protect the clone. With the Sontarans' ability to jam most conventional firearms by expanding the copper-lined bullets, the UNIT troops are quickly slaughtered and the factory is secured.
Rattigan leaves the Sontaran flagship to gather his students. He plans to take them to another planet and begin the human race anew. The students laugh him off, even when he brandishes a gun. When he returns to report his failure, the Sontarans too ridicule his efforts, having never planned to take him. Rattigan teleports back to his mansion before they can kill him, and the Sontarans lock the teleport pods against him.
Meanwhile, the Doctor instructs Donna to reopen the teleport pods. UNIT uses the Valiant's turbofan engines to clear an area around the factory. A Sunglider weapon — smaller than that used against the Sycorax — is their main offence and with steel-encased bullets in lieu of copper, they begin a successful retaliatory strike.
The Doctor makes his way to the cloning room where Martha is being held. Having figured out long before the clone wasn't the genuine article, he severs its connection to Martha, leaving it to die. Martha convinces the clone to betray the Sontarans in its last moments. The clone reveals that the poison gas is actually "clone feed" for Sontaran clones: they are converting the planet into a giant breeding world. With Donna's help, the Doctor reactivates the teleport pods, rescues Donna, steals back the TARDIS, and teleports into Rattigan's mansion.
With Rattigan's equipment, the Doctor builds an atmospheric converter, igniting the atmosphere to clear out the poison gas. However, he knows the Sontarans won't accept defeat so easily — they are beginning their standard invasion stratagem. He tells Donna and Martha to lead good lives, tells Rattigan to go on and do something clever, and teleports to their ship with the converter to give them the choice between retreat and death. The Sontarans choose the latter, as a countdown begins. The Doctor threatens that he will do it, but Staal defiantly tells him tha Sontarans do not fear death. The begin chanting "Sontar-ha!" However, with a few seconds left, Rattigan simultaneously teleports himself to the Sontaran ship and the Doctor back to Earth. The Sontarans stop their chant with the new development. Luke says "Sontar? Ha!" and detonates the device.
With the day saved, the Doctor and Donna say their goodbyes to Martha, only to have the TARDIS spring to life and begin piloting itself to places unknown before she can leave, the Doctor's hand jar bubbling...
Cast
- The Doctor - David Tennant
- Donna Noble - Catherine Tate
- Martha Jones - Freema Agyeman
- Rose Tyler - Billie Piper
- Wilfred Mott - Bernard Cribbins
- Sylvia Noble - Jacqueline King
- General Staal - Christopher Ryan
- Commander Skorr/Lieutenant Skree - Dan Starkey
- Colonel Mace - Rupert Holliday Evans
- Luke Rattigan - Ryan Sampson
- Ross Jenkins - Christian Cooke
- Captain Price - Biddy Hodson (credited as "Bridget Hodgson")
- Private Harris - Clive Standen
- Private Gray - Wesley Theobald
- Herself - Kirsty Wark
- Trinity Wells - Lachele Carl
Production crew
| Executive Producers Russell T Davies, Julie Gardner and Phil Collinson |
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| Not every person who worked on this adventure was credited. The absence of a credit for a position doesn't necessarily mean the job wasn't required. The information above is based solely on observations of the actual end credits of the episodes as broadcast, and does not relay information from IMDB or other sources. |
References
- The Doctor mentions the Rutans and the Rutan-Sontaran War.
- The Doctor addresses the Sontarans "under Jurisdiction Two of the Intergalactic rules of engagement" which is very similar to the Shadow Proclamation.
- The Doctor watches Tommy Zoom while waiting for the Sontarans to stop chanting.
- UNIT uses the Valiant to blow away ATMOS' gases.
- The Doctor mentions Jack Harkness when he confronts the clone of Martha.
- Luke Rattigan believed the Sontarans would take him and his followers to Castor 36, a planet orbiting Alpha Geminorum.
- The Doctor, when asked what he thinks of the Colonel's plan and while wearing a gas mask, says "Are You My Mummy?" in a manner very similar to that of Jamie from Series One's The Empty Child story.
Story notes
- Helen Raynor wrote this episode. Her Series 3 episodes Daleks in Manhattan and Evolution of the Daleks both occupied fourth and fifth episode in the series. This two part story also occupies episode four and five.
- Raynor was originally reluctant to write this story, having read online comments about her previous Dalek two-parter and come away "physically shaking" at the level of vitriol. Russell T Davies convinced her not to take the comments too seriously and to write this story. (REF: The Writer's Tale)
- This is the second part of a story which began with The Sontaran Stratagem.
- This episode and The Sontaran Stratagem are Douglas Mackinnon's directorial debut.
- When the Doctor cuts off Staal's speech on the video screen in mid flow, a clip from CBeebies cartoon Tommy Zoom is featured. The original plan to use a clip from Shaun the Sheep fell through.
- Billie Piper appears very briefly as Rose Tyler on the TARDIS' screen in this episode. She receives screen credit, and is fourth-billed, for a performance that lasts less than one second and which was actually shot for another episode.
- According to Russell T Davies in an interview in DWM 396, the cameo by Rose was not in the original edit of the episode, but was added just before broadcast when Davies learned how successful her unbilled cameo in Partners in Crime was. Although it was reported that the clip came from "an untransmitted scene" from another episode, in fact, according to the DVD commentary for Midnight, the scene was shot especially for Midnight during production of Turn Left and Davies dropped the scene into The Poison Sky, too. Davies said that, like Partners in Crime, advance review copies of this episode did not include the cameo. This scene was directed by Alice Troughton.
- The music that plays when the Valiant appears is strikingly similar to "The Master Tape", one of Murray Gold's musical themes for the Master. The Master helped design the Valiant.
- When Martha Jones wears the Doctor's jacket at the end of the episode, she says she feels like "a kid in my Dad's clothes." The following episode features (and it titled after) an actual daughter of the Doctor.
- This is the first episode to feature Billie Piper, Freema Agyeman, and Catherine Tate all together as Rose, Martha, and Donna, respectively. It is not, however, the first story in which all three actresses appear, as they all appear in Army of Ghosts/Doomsday.
- The Doctor says to the clone Martha "Avanti", which means "Let's go" in Italian. This is probably to confirm his suspicion of her clone nature. The real Martha would know that the Doctor usually says "Allons-y", the French equivalent.
- The Brigadier is said to be stranded in Peru. He has been knighted as Colonel Mace refers to him as "Sir Alistair". This is the first reference to the character in Doctor Who since the 1989 story Battlefield, although several references occurred in the first season of The Sarah Jane Adventures, broadcast in 2007. The Brigadier was knighted in the book PROSE: The Dying Days and called "Sir Alastair" in Big Finish Productions' audio dramas. The Doctor wishes he was there.
Ratings
- 6.5 million viewers
Myths and Rumours
- Billie Piper's brief cameo was taken from an earlier episode, most likely The Idiot's Lantern in which she was also shown shouting silently from a TV screen. In fact, the scene was filmed especially for Midnight, and inserted into this episode at the last minute.
Filming locations
Studio
- Upper Boat Studios, Trefforest
- BBC Broadcasting House, Llandaff
Location
- Margam Country Park, Port Talbot
- Usk Valley Business Park, Pontypool
- Nant Fawr Road, Cardiff
- Orion Electric, Port Talbort
- Roath Basin, Cardiff Docks
Production errors
- When Martha's clone enters the mobile HQ, it can be seen that she entered through a normal building's door (with daylight coming in through the window) which isn't present on the back of the vehicle or in the previous episode.
- During the end we see the Sontaran's weapons starting to target the Earth. They get ready and open up, yet when it's destroyed, they're still closed.
- During the warehouse battle, around the time when the Doctor tells Donna, "Hold on, I'm coming", the film crew can be seen reflected in a door at the right of screen.
- When Colonel Mace confronts Commander Skorr, he raises his gun twice: once in one shot, and again in the immediate next shot.
- When the atmospheric converter began burning the sky, it is seen that the fire sweeps from the dark side of the earth towards the light side. The same could be seen when the fire rescinds. The fire should be sweeping from the light side towards the dark side, as the conversion began in London UK during the daytime, and rescinded from the same location. This is not actually a mistake. This way would more logical, as otherwise Australia/New Zealand would only get a brief moment of clearing, which wouldn't be useful.
- Near the end when Luke Rattigan teleports onto the Sontaran ship, he catches the detonation device, then catches it again in a close up.
- When the corridor is blown up by the Valiant, one of the visual effects department's right shoulder can be seen.
- Commander Skorr seems to appear aboard the Sontaran ship after his death. However, this can easily be explained, as Sontarans are a clone race.
- When the Doctor yells at Colonel Mace, David Tennant's gold tooth is clearly visible.
Continuity
- The Sontaran High Command are mentioned. (TV: The Two Doctors)
- UNIT calls in the Valiant. (TV: The Sound of Drums, Last of the Time Lords)
- Rose Tyler appears on the TARDIS scanner screen for a split second. She appears to be shouting, "Doctor!" (TV: Partners in Crime)
- This is not the first time Rose has attempted to communicate with the Doctor though a television screen. (TV: The Idiot's Lantern)
- After the Sontarans fill the area with gas, the Doctor wears a gas mask. While being shown a gun by Colonel Mace, he is asked what he thinks. His reply is, "Are you my mummy?" (TV: The Empty Child, The Doctor Dances)
- The Valiant's laser appears similar to one that Torchwood used. (TV: The Christmas Invasion)
- The Doctor thanks Donna and Martha just before he tries to sacrifice his life. (TV: The Sontaran Stratagem)
- In the New York scene a building with the name "Butler Institute" on it can be seen. The Butler Institute first appeared in PROSE: Cat's Cradle: Warhead.
- Gas was released over London previously in PROSE: Amorality Tale.
- The Doctor gave clues to Donna about what action to take via a visual link, but the Sontarans didn't know it was happening. The Doctor did a similar thing when he gave clues to Mickey about how to stop the Cybermen created by Cybus Industries. (TV: The Age of Steel)
- In an alternate timeline, the Sontaran invasion was stopped by Torchwood 3. The atmosphere was reverted to its previous state and the Sontaran flagship exploded by Gwen Cooper and Ianto Jones, who were killed in the process. Jack Harkness was taken to the Sontaran's home planet. (TV: Turn Left)
- The destruction of the Sontaran ship would be referred to again by a surviving Sontaran. His scout ship can be seen being knocked away from the blast force of the exploding flagship. He would crash land on Earth, heavily injured. (TV: The Last Sontaran)
- The Doctor says that at times like this, he could do with the Brigadier.
Home video releases
- This story was released in the Series 4 DVD box set in November 2008 along with the rest of the series.
- It was released as part of Series 4 Volume 2 in a vanilla edition with The Sontaran Stratagem, The Doctor's Daughter and The Unicorn and the Wasp.
External links
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