The Tenth Planet (TV story)

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The Tenth Planet was the second story broadcast in season 4 of Doctor Who. Due to the fact that The Smugglers was the final story in season 3's production block, however, The Tenth Planet was actually the first story produced in this season; from a production standpoint, this was William Hartnell's only contribution to season 4. It also introduced the Cybermen, who would become a longstanding enemy of the Doctor.

The Tenth Planet was a major historical turning point for the Doctor Who series by employing a new concept that would come to be known as regeneration. This plot mechanic has contributed to its long run on television. Likewise, it introduced the idea the Doctor has multiple incarnations and can regenerate to coincide with the departure of an actor playing an incarnation to avoid cold transition from one actor to the next.

This was actor William Hartnell's final story as a regular on the series, as he was asked to leave the role, and the last adventure of the First Doctor. Hartnell returned to reprise the role of the First Doctor one final time in 1972-73's The Three Doctors for the opening of the tenth anniversary season of Doctor Who.

Newcomer Patrick Troughton took Hartnell's place at the end of this serial, marking his debut as the Second Doctor.

Currently, the fourth and final episode of this serial remains missing from the BBC film archive, with only the regeneration sequence and various other scenes discovered intact. However, the missing episode has been carefully reconstructed in animated format.

Synopsis

Many years ago, Earth's twin planet, Mondas, drifted away to the edge of space. Its inhabitants grew weak, so their scientists created spare parts for their bodies. Limbs and organs were slowly replaced by metal and plastic. Emotions were removed. The Cybermen were born.

The Doctor's TARDIS lands at the Snowcap space tracking station in Antarctica in December 1986. A routine space mission starts going wrong. When the base personnel's suspicions are roused, the Doctor informs them that the space capsule is being affected by the gravitational pull of another planet — a tenth planet in the Solar system.

The loss of a routine space mission and the appearance of that planet in the sky herald the arrival of the Cybermen, who are intent on the destruction of the Earth and the conversion of all humans into Cybermen. Ben and Polly fight to save the world, but it is a battle that may be the Doctor's very last...

Plot

Episode 1

Schultz and Williams aboard the Zeus IV.

The Snowcap space tracking station based on the South Pole is monitoring the launch of the manned Zeus IV atmospheric testing probe as it goes into orbit. The ship is manned by two pilots, Schultz and Williams.

The Doctor, Ben and Polly materialise outside the underground bunker of Snowcap and are soon spotted by men watching the surrounding areas through a periscope. Men are scrambled out to collect the strangers. The Doctor, Ben and Polly willing enter Snowcap.

Inside Snowcap the Doctor, Polly and Ben are interrogated. General Cutler is sent for, who responds hostilely to the strangers. Cutler decides to put them in the observation room until he has time to deal with them later. Once there the Doctor notices a calendar on the wall saying it is December 1986. Ben is disappointed he won't be able to meet up with his ship but seems more interested when he discovers that space travel is the norm. This conversation is interrupted by a distress call from the Zeus IV space capsule which has been drawn off-course by an unknown force that drains the energy.

Zeus IV explains that it is nowhere near the destination they would expect to be in. Observing their location Schultz sees another planet. Williams confirms this and says it seems to lie between Mars and Venus. Their state is also brought into confusion by the fact that the communication to Snowcap is weakened and their fuel is dropping much faster than normal.

Observing the crisis, the Doctor announces that he believes he knows the cause of the problems. He is not listened to but gives a piece of paper to Doctor Barclay. Snowcap sight the new planet before they receive the call from Zeus IV saying their fuel has reached 20% - Barclay says they should attempt to come down.

Schultz and Williams attempt to land but they have no control over their descent as the new planet is effecting their gravitational pull.

Exasperated Barclay goes to the Doctor for advice. The Doctor looks at a screen with the planet on it and observes that it is identical to Earth - down to the landmasses being identical. The Doctor asks Barclay to look at the piece of paper that he gave him and is astounded when the Doctor predicted this phenomenon before they even saw it. The Doctor tries to explain how he knew this - saying that millions of years ago there was a twin planet to Earth. Before he can go into any more detail Cutler storms out saying this is ridiculous. When alone the Doctor explains to Ben that he fears this means invasion.

Cutler speaks to Mr Wigner the Secretary General of International Space Command and informs him of the new planet as well as the strangers. Wigner demands that they be interrogated immediately.

Cutler storms in and demands the truth from the Doctor and suspects him of being in collusion with this mystery. He sends men out to search the TARDIS.

The men are scrambled to the TARDIS. Before they can get out there a mysterious ship lands on the surface of the South Pole. Unable to open the TARDIS the soldier sends his ally back to get a welder. Whilst alone he is approached by a robotic creature who knocks him out. When his ally returns the creature is disguised in the man's clothes. When he turns to reveal himself he knocks the two men out - using human hands.

Episode 2

The Mondas Cybermen invade the Snowcap.

The Doctor reasserts his belief that there will be visitors to Earth from the mystery planet but is pooh-poohed by Cutler. Cutler speaks to Zeus IV and promises them they will be brought back safely.

Outside Snowcap the robots disguise themselves in the clothes of their, now dead, victims.

At International Space Command a powerless Wigner is forced to watch the news to learn about the mystery planet as communications have been severed with Snowcap.

While everyone is distracted by their efforts to land Zeus IV safely, the alien invaders enter the base, killing a soldier who tries to disable them on the orders of Cutler. The base personnel and Polly plead with the creatures to allow them to save the lives of the Zeus IV crew, but the aliens proclaim that the lives of the humans are irrelevant to them. They reveal that they are known as Cybermen and were once like human beings and loved on the planet Mondas, twinned with Earth. As Mondas drifted off into space cybernetic scientists gradually replaced their bodies with mechanical parts and eliminated the "weakness" of illnesses and emotions from their brains. Cutler presses a panic button alerting International Space Control to an emergency. International Space Control get in touch and the Cybermen order Cutler to inform them that it was a false alarm; Cutler refuses and is rendered unconscious by the touch of a Cyberman. Barclay is approached to do the same and refuses until the Cybermen threaten to destroy the computers that would help Zeus IV to land. Barclay yields stating it as a fault. Once this has been done the Cybermen inform Barclay it is impossible for the astronauts to return as Mondas' gravitational force is too close. As they Cybermen begin the process of securing Snowcap Ben plans their escape. Seeing a gun left on the ground by the dead soldier he picks it up but is soon spotted by a Cyberman. The gun is removed and bent in the Cyberman's grip before Ben is removed and imprisoned in a projection room.

The Cybermen allow the Snowcap personnel to contact Zeus IV, but it is too late to save them. The ship is dragged further away from Earth by the new planet and explodes.

The Cybermen demand information on Earth and explain that Mondas' energy reserves are becoming exhausted and intend to use all of Earth's. It is currently absorbing energy from Earth and will soon destroy it. When Polly asks if they plan to kill all of human kind the Cybermen reveal they propose to take all humans back to Mondas.

Ben, who has been looking for a weapon, rigs up the projector to blind his Cyberman guard. He baits the room and calls the Cyberman in. As the Cyberman is blinded he steals the Cyberman's weapon and kills him. He seems to be effected by this death.

Ben sneaks back into the tracking room and hands the cyber-gun to the revived Cutler, who kills the remaining two Cybermen. Cutler contacts Secretary General Wigner at Space Command HQ in Geneva and informs him of the attack. Wigner alerts all military bases and informs that his son, Lieutenant Terry Cutler, was sent on a mission to rescue the doomed Zeus IV and, in turn, is now trapped in orbit.

As Cutler makes plans to secure Snowcap from further Cyberman invasions, including use of anti-aircraft missiles, the radar technician announces that a fleet of spacecraft have been detected. They are approaching Earth!

Episode 3

Apparently suffering from exhaustion, the Doctor collapses and is taken to the crew quarters to rest.

Polly asks Doctor Barclay for help.

Cutler decides it is time to take the fight to the Cybermen. He contacts Geneva for permission to launch the powerful Z-bomb to destroy Mondas. Secretary Wigner at Geneva refuses permission, but Cutler decides to proceed anyway. Ben and Polly argue against using the bomb. Ben says the Doctor believed that Mondas will destroy itself anyway when it absorbs too much energy. The chief scientist at Snowcap, Doctor Barclay, is also concerned. He says the radiation caused by the exploding planet would cause great loss of life on Earth. Unswayed by the arguments and annoyed by the interruptions, Cutler orders Ben imprisoned with the Doctor.

Polly persuades Dr Barclay to help them stop the bomb being launched. Barclay tells Ben how to sabotage the rocket to prevent it from reaching Mondas, but Cutler notices Barclay's absence. He goes to investigate, catches Ben while he is sabotaging the rocket and knocks him unconscious.

A second Cyberman ship lands near Snowcap, but Cutler is prepared this time. The attacking Cybermen are repelled by the General's men using captured cyberweapons.

Ben deduces the Cybermen's weakness.

Meanwhile, the countdown to the launch of the Z-bomb has started. Ben regains consciousness but is disorientated and cannot remember if he sabotaged the rocket before being discovered by Cutler. The countdown approaches zero.

Episode 4

As the countdown to launch the Z-bomb reaches zero, the engines fail on the launch pad. Cutler is enraged. He threatens to kill Ben, Barclay and the Doctor, who has regained consciousness and returned to the tracking room. Driven mad with grief by the apparent death of his son in the Zeus V rescue capsule, Cutler is oblivious to the warnings that another force of Cybermen are attacking the base.

An amazing transformation begins...

As he is about to carry out his threat and kill the Doctor, Cutler is killed by the invading Cybermen. They take the Doctor prisoner. Earth's proximity to Mondas causes the twin planet's energy to drain and Mondas begins to break apart. The Cybermen all collapse, their energy source destroyed. Ben rescues Polly and the Doctor. The weary Doctor returns to the TARDIS and closes the door. As Ben and Polly hammer on the door, the controls operate of their own accord and the central column begins to rise and fall. The Doctor opens the door and Ben and Polly finally get in. Barely conscious, the Doctor collapses to the floor. Ben and Polly stand back as the Doctor becomes enveloped in a bright light. As the light dies down, the Doctor's face is different and has the appearance of a younger man...

Cast

Crew

References

The Doctor

  • When his physical body dies or is on the verge of dying, the Doctor voluntarily undergoes a biological process called regeneration that will recreate his old body at the cellular level into a new and revitalised one.

Biology

  • Space fatigue is hypothesised as the cause of the Zeus IV pilots' tiredness, influenced by Mondas' gravity.

Foods and beverages

  • Polly makes several cups of coffee.

Locations

Individuals

Media

Organisations

Popular culture

Planets

  • Mondas is Earth's twin planet. The Doctor appears to know of Mondas, and predicts that its inhabitants will be coming to Earth.
  • An Earth expedition has just returned from the Moon.

Species

Technology

  • A retinascope is part of the rocket.
  • Nuclear Z-Bombs, able to destroy a planet or turn it into a star, can be launched via a Demeter rocket.
  • According to Ben, locks are different than the 1966 ones, so he cannot force them.

Vehicles

Story notes

  • This is the first time the regeneration process is seen, from William Hartnell's Doctor into Patrick Troughton's Doctor. The process is not given a name until 1974 in Planet of the Spiders.
  • Episode four is missing from the BBC archives. Only short clips of footage exist, among which are the regeneration sequence itself; the sequence exists thanks to it having been included in an early 1970s edition of Blue Peter that discussed the transition to the new Doctor. The regeneration is one of several sequences from lost episodes (Katarina's death in TV: The Daleks' Master Plan being another) that were inadvertently preserved through their use on Blue Peter episodes that were not wiped.
  • William Hartnell left Doctor Who due to bad health, but upon leaving had said, "If there is one man in England who can replace me as the Doctor, it's Patrick Troughton!" Troughton took over the role of the Doctor when Hartnell regenerated into Troughton. Hartnell returned in The Three Doctors in 1972 to celebrate the show's tenth anniversary. He died three years later.
  • The Doctor does not appear in episode three, as William Hartnell was unwell during the week when it was recorded.
  • Special "computer tape"-style opening and closing title graphics were created for this story by graphic designer Bernard Lodge.
  • This is the only story to give Cybermen characters individual names (Krang, Jarl etc). After this, Cybermen were only ever named by rank (Cyberleader, Cybercontroller etc).
  • At the time of the serial's original broadcast, as well as the timeframe of the serial (1986), Pluto was still considered a planet and therefore the story title and dialogue referring to Mondas as the solar system's tenth planet was correct. In 2006, Pluto lost its planetary status, which would make Mondas officially the ninth planet, not the tenth. Note: By the newly-adopted criteria which excludes Pluto, Mondas would technically not be considered a planet either. Also, the later serial TV: The Sun Makers, set in the far future, describes Pluto as a planet and also identifies another tenth planet named Cassius, suggesting that in the Whoniverse another realignment of the solar system's makeup occurs in the future.

Ratings

  • Episode 1 - 5.5 million viewers
  • Episode 2 - 6.4 million viewers
  • Episode 3 - 7.6 million viewers
  • Episode 4 - 7.5 million viewers

Myths

Filming locations

Production errors

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.
  • The writing credit for episode one has Kit Pedler as "Kitt Pedler" and title music is credited to "ByRon Grainer" (and due to all letters being capitalised it appears to be "Byron Grainer", as in the first name "Byron"), when it should read, "By Ron Grainer"; for episode three, Gerry Davis becomes "Gerry Davies".
  • Sometimes the Cybermen start to talk before their mouths open.
  • The script requires the Cybermen to pass for human in their parkas, an effect ruined by the lamps on their heads.
  • The Cyberman helmets were held together with Gaffatape, which can clearly be seen in this episode.
  • When the Cybermen are ambushed outside, one of them has part of his headpiece (one of the "jug handles") come loose.
  • The reprise at the start of episode three is a remount of episode two's cliffhanger, not a telerecording of the final moments of episode two, and the dialogue between Cutler and the technician at the beginning of episode three is slightly different from that which closed episode two.
  • In episode four, Michael Craze commits a Spoonerism, accidentally saying "plonet Mandos" instead of "planet Mondas."
  • In episode two, while Krail is proposing his plan to take the humans to Mondas (and after the Doctor has shouted his objections), his head-mounted lamp / "third eye" starts reflecting studio lights.
  • Occasionally, the Cybermen's mouths do not look like they open at all when talking.

Continuity

Home video and audio releases

Footnotes

External links