Doctor Who

The Doctor discovers Polly and Ben aboard the TARDIS shortly before the ship arrives in 17th century Cornwall, where the local churchwarden gives the Doctor a cryptic message shortly before being murdered.

Pike is convinced that the Doctor knows the location of Avery's treasure while Polly and Ben try to convince the locals they were not responsible for Longfoot's murder.

Polly and Ben are placed in the custody of Blake, who reveals he also has his suspicions about the Squire, while the Doctor and Kewper are forced to team up to escape from Pike's ship.

The Doctor and his friends are at the mercy of Cherub, who is now seeking Avery's treasure for himself, while Pike prepares to attack the village.

In December 1986, a new planet appears in the Solar System which turns out to be a long-lost twin of Earth's named Mondas. Its inhabitants are the Cybermen.

The Doctor's warnings are ignored and the Cybermen take over the base, hampering the crew's efforts to help Zeus IV.

With the Doctor out of action, it is up to Polly, Ben and Barclay to stop Cutler using the Z-Bomb and devastating half the world.

The Cybermen take over the base again, apparently to stop the humans using the Z-Bomb, but then the Doctor realises they intend to use it themselves to destroy Earth.

The Doctor and his companions are brought to an Earth colony on the planet Vulcan.

The Doctor warns the scientist about the dire consequences of reactivating the dormant Dalek that he claims not to have discovered. The Doctor attempts to see the governor in an attempt to stop the secret experiments with the Dalek,.

Polly is taken prisoner by the rebels who are planning to use the Dalek to take control of the colony.

Scientist Lesterson discovers the Daleks plot to reproduce themselves and then seize control of the Colony.

The head of security for the Earth colony Vulcan, leads a rebellion; The Daleks prepare to make their final assault on the people of the colony.

The Daleks begin their attack while the battle rages between the loyalists and the rebels and it falls to the Doctor to make an attempt to stop the Daleks plot.

The Doctor, Polly and Ben arrive in 1746, in the aftermath of the Battle of Culloden, and are captured by a group of Highlanders shortly before they themselves are captured by redcoats.

Polly and Kirsty capture Lieutenant Ffinch to try and enlist his help while the Doctor tricks Gray in order to escape.

With the Highlanders imprisoned aboard Trask's ship, the Doctor attempts to expose Grey's plan.

Ben manages to join up with the Doctor, Polly and Kirsty and together they work to free the Highlanders from Trask's ship before Grey sells them into slavery.

The TARDIS materializes on a stretch of deserted beach. The Doctor and his companions are then captured and taken to the mysterious lost city of Atlantis.

While Ara tries to save Polly from being turned into a Fish Person and Ben and Jamie try to escape from the mines, the Doctor discovers the full extent of Zaroff's plans.