An anachronistic twelve-million-year-old human skull has been discovered by archaeologists and is now being used by Professor Fendelman in his time scanner experiments at Fetch Priory in contemporary England. The skull is actually an artifact of the Fendahl, an ancient creature that feeds on the life force of others.

The Doctor and Romana visit the Leisure Hive on the planet Argolis, the surface of which is uninhabitable following a twenty minute nuclear war between the Argolins and their enemies the Foamasi. The Argolins themselves are now sterile. Pangol, the youngest, was created by the Tachyon Recreation Generator, a machine that runs games in the Hive.

The Doctor learns the Captain's terrible secret. Captain: Bruce Purchase. Mentiad: Bernard Finch. Romana: Mary Tamm. Guard: Adam Kurakin.

The Daleks are using explosive charges and a group of humanoid slave workers to mine planet Skaro.

The Doctor travels to Victorian London only to be rapidly drawn into a fiendish plot involving disappearing women, an Oriental stage magician with uncanny powers, a murderous ventriloquist's dummy, and giant rats in the sewers.

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.

Dr. Who and Romana are diverted to Alzarius on a voyage home. Dr. Who: Tom Baker. Romana: Lalla Ward. Varsh: Richard Willis. Login: George Baker. Adric: Matthew Waterhouse.

The Doctor travels to Victorian London only to be rapidly drawn into a fiendish plot involving disappearing women, an Oriental stage magician with uncanny powers, a murderous ventriloquist's dummy, and giant rats in the sewers.

The Doctor discovers that the spaceship is a living creature.

The axonite is quickly distributed around the world.

The overlap between quantum reality and science fiction is discussed.

The Doctor and his companions are thrust into the Eternals' "amusement." Peter Davison. Black Guardian: Valentine Dyall. White Guardian: Cyril Luckham. Wrack: Lynda Baron. Turlough: Mark Strickson.

The Doctor faces death when the Time Lords place him on trial for interfering in galactic affairs. Peri: Nicola Bryant. Melanie: Bonnie Langford. The Valeyard: Michael Jayston. Katryca: Joan Sims.

Clara is alone in Victorian London with a man she doesn't know, a dinosaur in the Thames, and a spate of deadly spontaneous combustions. The Doctor has changed. It's time you knew him.

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 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....

Christmas Eve 1892 and a chilling menace threatens humankind - but with the Doctor in mourning, it takes old friends and an unorthodox young governess to get him fighting to save the world again.

The Doctor's search for Clara brings him to London, where Wi-Fi is everywhere. Humanity lives in a Wi-Fi soup but something dangerous is lurking in the signals, picking off minds and imprisoning them...

On the rings of the planet Akhaten, the Festival of Offerings is in full swing. Clara meets the Queen of Years but something is stirring in the pyramid, and a sacrifice will be demanded.

The Doctor and Clara land on a submarine in 1983 as it spirals into the ocean depths with an alien creature loose. With tempers flaring and nuclear weapons on board, the whole of humanity is at stake!