Part 1 of two. The Doctor is stranded on war-torn Skaro---home of the Daleks. Elisabeth Sladen. Davros: Michael Wisher. Harry: Ian Marter.

On the planet Earth, Dr. Who and Romana (Mary Tamm) stumble upon the mystery of an ancient stone circle, a Celtic sacrificial site. Prof. Rumford: Beatrix Lehmann. Vivien Fay: Susan Engel.

Dr. Who returns to Gallifrey and finds himself accused of plotting to kill the President (Llewellyn Rees). Hildred: Derek Seaton. Master: Peter Pratt. Goth: Bernard Horsfall.

The Time Lords intercept the transmat beam taking the Doctor, Sarah and Harry back to Nerva and deposit them instead on the planet Skaro at an early point in its history. There a Time Lord gives the Doctor both a mission to prevent or alter the Daleks' development so that they become less of a threat to the universe and a time ring that will enable him and his companions to return to the TARDIS once this is done.

The TARDIS arrives in the marshes of the third moon of the planet Delta Magna. While trying to get an accurate reading on the tracer, the Doctor is shot at by Thawn and Fenner, two men from a nearby methane refinery.

The TARDIS arrives on a planet where a savage tribe called the Sevateem worship a god called Xoanon. The Doctor discovers that Xoanon is in fact a spaceship computer that he tried to repair at some point in his past and inadvertently drove mad by giving it a multiple personality.

The Doctor is trapped in the pit; meanwhile, K9 is incapacitated. Voice of K9: David Brierley. Dr. Who: Tom Baker. Organon: Geoffrey Bayldon. Adrasta: Myra Frances. Romana: Lalla Ward. Torvin: John Bryans.

The Doctor (Tom Baker) returns to Gallifrey to become President. Louise Jameson. Vardan Leader: Stan McGowan. Andred: Chris Tranchell.

The Doctor arrives on Gallifrey, where he is accused of the assassination of the Time Lord President. Investigating with the aid of Co-ordinator Engin and Castellan Spandrell, he discovers that this is part of a plot hatched by his old adversary the Master.

The TARDIS arrives on a planet where a savage tribe called the Sevateem worship a god called Xoanon. The Doctor discovers that Xoanon is in fact a spaceship computer that he tried to repair at some point in his past and inadvertently drove mad by giving it a multiple personality.

The Doctor expels Leela to the wasteland. Borusa: John Arnatt. Andred: Chris Tranchell. Lord Gomer: Dennis Edward. Kelner: Milton Johns. Vardan: Tom Kelly.

When ghosts of past and future come into their lives, the Doctor and Clara are taken to the very end of the universe.

For the series 10th anniversary special, three incarnations of the Doctor combine forces to defeat the evil Omega in a universe of made of anti-matter. Compiles episodes 1 and 2 from "Doctor Who" series 10.

The TARDIS arrives in the future on the planet Pluto where there are now six suns, a breathable atmosphere and a large industrial community. The Company controls the planet and exploits the workers, pays them a pittance and then taxes them on everything imaginable. The Doctor and Leela join forces with an underground band of rebels led by a man named Mandrel.

Omega reveals himself as well as his reasons for why he brought all three Doctors together. The news reveals a startling revelation that causes the Doctor to question what he knows about himself. Compiles episodes 3 and 4 from "Doctor Who" series 10.

The White Guardian gives the Doctor a quest to find the six disguised segments of the Key to Time which, when assembled, will be used to restore the balance of the cosmos. To aid him he is given a new companion, a female Time Lord called Romana, and a tracer device.

The TARDIS is hijacked with Dr. Who, Romana and Adric aboard. Tom Baker, Lalla Ward, Matthew Waterhouse. Biroc: David Weston. Packard: Kenneth Cope. Rorvik: Clifford Rose.

Conclusion. The Doctor investigates when, near the island on which the Master is incarcerated, giant lizards begin attacking ships.

This terrifying story is assembled from footage discovered in the wreckage of Le Verrier Space Station.

The Doctor and Clara, with their old friend Rigsy, find themselves in a magical alien world, hidden on a street in the heart of London. Sheltered within are some of the most fearsome creatures of the universe and Ashildr (Maisie Williams)!

Part 1. Trapped in a world unlike any other he has seen, the Doctor faces the greatest challenge of his many lives. One final test. And he must face it alone. Pursued by the fearsome creature known only as the Veil, he must attempt the impossible.

Amy and Rory are trapped on a crashing space liner, and the only way The Doctor can rescue them is to save the soul of a lonely old miser. But is Kazran Sardick, the richest man in Sardicktown, beyond redemption? And what is lurking in the fogs?

When ghosts of past and future come into their lives, the Doctor and Clara are taken to the very end of the universe.

Can Rose trust a man with a new face? As the newly regenerated Doctor drifts in and out of consciousness, Christmas becomes a time of terror on planet Earth when the whole of mankind falls under the shadow of the sinister alien Sycorax.

The Doctor and Rose board the Tardis and visit mankind's new home but they find gruesome secrets in a luxury hospital.

The Doctor and Rose travel back to 1879, but an encounter in the Scottish Highlands with Queen Victoria and a band of warrior monks reveals a deadly trap.

The Doctor investigates a haunted London school and runs into an old friend.

The Doctor turns bank robber when he is given a task that he cannot refuse--steal from the most dangerous bank in the cosmos.