Dr. Who fights for his life; Sarah (Elisabeth Sladen) encounters a giant robot. Robot: Michael Kilgarriff. Benton: John Levene. Stewart: Nicholas Courtney. Harry: Ian Marter. Miss Winters: Patricia Maynard. Jellicoe: Alec Linstead.

People begin to vanish from a group devoted to learning more about the Doctor and Rose after the mysterious Victor Kennedy (Peter Kay) gets involved. Camille Coduri. Mark Warren.

Miniature clones of Dr. Who and Leela are injected into the Doctor to fight the virus. Marius: Frederick Jaeger. Lowe: Michael Sheard. Nucleus Voice: John Leeson. Parsons: Roy Herrick.

The time ring takes the Doctor, Sarah and Harry back to Nerva, but to a period many thousands of years earlier than their previous visit. The station is currently acting as a beacon warning space traffic of the existence of a new asteroid orbiting Jupiter.

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 TARDIS is infiltrated by the Swarm - a space-borne intelligence that wishes to spread itself across the universe - and the Doctor is infected by its nucleus. The ship then materialises on Titan, one of the moons of Saturn, where the human occupants of a refuelling station have also been taken over.

Following a prison riot the Doctor and Jo are taken hostage. It is there he learns the full nature of the Master's plot to hijack a missile and attack the World Peace Conference in London. It will take all of the Doctor's cunning wiles to escape the Master and his mind controlled assassins in time. Compiles episodes 8 through 10 from "Doctor Who" series 8.

The inhabitants of the planet Skonnos have been promised by an alien Nimon that he will restore their empire to greatness if they in return provide young sacrifices and radioactive hymetusite crystals, both of which they are obtaining from the nearby planet Aneth..

The Doctor matches wits with a mind-control machine that contains an evil alien parasite.

The overlap between quantum reality and science fiction is discussed.

Harry Saxon becomes Prime Minister, but has dark ambitions.

With The Doctor imprisoned by The Master, Martha endeavors to save the world.

The overlap between quantum reality and science fiction is discussed.

Kylie Minogue joins Doctor Who to play Astrid, a waitress on a doomed spaceship that eerily resembles the Titanic. When a meteor hits, Astrid and The Doctor must protect the survivors from and prevent the whole ship from crashing to Earth.

Donna is determined to find the Doctor, even if it means braving Miss Foster and her hordes of Adipose.

With Cybermen on the streets of London, old friends unite against old enemies.

The Doctor and Donna visit Pompeii in AD 79, on the eve of the eruption of Mount Vesuvius.

The Doctor takes Donna to her first alien world, but the Ood-Sphere reveals some terrible truths about the human race.

Part 1. Sontaran warriors set their sights on the Earth and its inhabitants.

Part 2. As poison gas suffocates the Earth's population, the Doctor and UNIT team members work to eliminate the threat.

Freddie needs a new coat for a "Doctor Who" fan-club event; Ash asks Freddie and Stuart for advice on winning back his ex-girlfriend; and Ash, Violet and Penelope make a shocking discovery during a shopping excursion.