Dr. Who (Tom Baker) discovers a sinister interference with earthlings in suspended animation. Harry: Ian Marter. Sarah: Elisabeth Sladen. Vira: Wendy Williams. Noah: Kenton Moore. Rogin: Richardson Morgan.

On Pluto, the Doctor discovers humans controlled by a ruthless business operation. Tom Baker, Louise Jameson. Cordo: Roy Macready. Nurse: Carole Hopkin. Veet: Adrienne Burgess.

The planet Karn is home both to a mystic Sisterhood, whose sacred flame produces an elixir of life, and to Mehendri Solon, a fanatical scientist who is using the remnants of spaceship crash victims to put together a new body for the still-living brain of the executed Time Lord criminal Morbius.

After a meeting in space with a group of unseen aliens the Doctor returns to Gallifrey and claims the presidency of the Time Lords. Leela meanwhile tries to work out why he is behaving out of character. At his induction, the Doctor is 'crowned' with a device giving him access to the Matrix. He then arranges for the transduction barriers around Gallifrey to be put out of action by K9. When this is done, his alien 'friends' materialise. They are telepathic invaders called Vardans.

The Doctor, Romana and K9 land on the planet Zanak in their search for the second segment to the Key to Time. Tom Baker. Romana: Mary Tamm. Captain: Bruce Purchase.

Mad scientist Mehendri Solon is building a body from spare parts to house the disembodied brain of the evil Time Lord Morbius. He fancies the Doctor's head as the final piece.

The Master raises a demon from the depths of hell and forms his own cult in hopes of utilizing the cloven-hooved creature's demonic power. If the Doctor wants to stop him, he may need a little bit of magic on his side. Compiles episodes 21 through 23 from "Doctor Who" series 8.

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.

After a meeting in space with a group of unseen aliens the Doctor returns to Gallifrey and claims the presidency of the Time Lords. Leela meanwhile tries to work out why he is behaving out of character. At his induction, the Doctor is 'crowned' with a device giving him access to the Matrix. He then arranges for the transduction barriers around Gallifrey to be put out of action by K9. When this is done, his alien 'friends' materialise. They are telepathic invaders called Vardans.

The Master kidnaps Jo and wants to sacrifice her in order to gain the demon's powers. Will the Doctor be able to stop him in time to save Jo and the earth? Compiles episodes 24 and 25 from "Doctor Who" series 8.

The Doctor and Romana uncover a drug-smuggling operation and set out to find the source of Zip, the most dangerous drug in the universe. Lalla Ward. Rigg: David Daker. Della: Jennifer Lonsdale. Tryst: Lewis Fiander.

Conclusion. Colonists on an Earth outpost in the 25th century are being targeted by a ruthless mining company.

The Doctor's final days are upon him - but when he drops in on an old friend, the Cybermen are waiting.

By the shores of Lake Silencio, in Utah, all of time and space hang in the balance - because this is the day the Doctor dies.

Kidnapped by his oldest foe, the Doctor is forced on an impossible mission - to a place even the Daleks are too terrified to enter...

An unmanned spaceship hurtles towards certain destruction - unless the Doctor can save it, and its impossible cargo... of dinosaurs!

The Doctor gets a Stetson and a gun, and finds himself the reluctant Sheriff of a Western town under siege by a relentless cyborg.

The overlap between quantum reality and science fiction is discussed.

The Doctor and the Ponds puzzle an unlikely invasion of Earth, as millions of sinister black cubes fall from the sky overnight...

The Doctor's heart-breaking farewell to Amy and Rory - a race against time through the streets of Manhattan, as New York's statues come to life around them....

"The Time of the Doctor" features the final appearance of Matt Smith as the Eleventh Doctor and the first regular appearance of Peter Capaldi as the Twelfth Doctor. Janna Coleman is featured as the Doctor's companion Clara Oswald. This episode includes several enemies of the Doctor from the Cybermen, Silence, Daleks and Weeping Angels. Oh my!