Returning to Earth, the Doctor and Sarah (Elisabeth Sladen) are met with hostility and suspicion. Crayford: Milton Johns. Morgan: Peter Welch. Styggron: Martin Friend. Kraal: Stuart Fell.

The Doctor and his companions encounter space lepers headed for a cure on "Terminus." Peter Davison. Kari: Liza Goddard. Olvir: Dominic Guard. Turlough: Mark Strickson. Nyssa: Sarah Sutton.

The Doctor (Tom Baker) is summoned to the Antarctic to examine a vegetable pod discovered in the ice. Elisabeth Sladen. Derek Moberley: Michael McStay. Charles: John Gleeson. Harrison: Tony Beckley. Dunbar: Kenneth Gilbert.

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.

The TARDIS picks up a distress call and the Doctor and Sarah arrive on the planet Zeta Minor. There they discover that a Morestran geological expedition has fallen prey to an unseen killer and only the leader, Professor Sorenson, remains alive.

Dr. Who and Romana (Lalla Ward) land on Chloris, a planet rich in plant life but poor in metal resources. Adrasta: Myra Frances. Karela: Eileen Way. Huntsman: David Telfer. Voice of K9: David Brierly.

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

The TARDIS picks up a distress call and the Doctor and Sarah arrive on the planet Zeta Minor. There they discover that a Morestran geological expedition has fallen prey to an unseen killer and only the leader, Professor Sorenson, remains alive.

UNIT are sent to investigate the suspicious death of a Welsh miner whose body has developed a strange green glow, and Jo joins a group of anti-pollution protesters. Meanwhile, the Doctor pays a visit to Metebelis Three.

UNIT are sent to investigate the suspicious death of a Welsh miner whose body has developed a strange green glow, and Jo joins a group of anti-pollution protesters. Meanwhile, the Doctor pays a visit to Metebelis Three.

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.

UNIT are sent to investigate the suspicious death of a Welsh miner whose body has developed a strange green glow, and Jo joins a group of anti-pollution protesters. Meanwhile, the Doctor pays a visit to Metebelis Three.

Part 1. Scientists discover something isn't right beneath Earth's crust while drilling.

The Doctor and Amy meet Winston Churchill during a trip back to World War II, where they also encounter the Daleks.

Part 1. The Doctor hunts the last of the Weeping Angels through the Maze of the Dead; the mysterious River Song is back in the Doctor's life, but he doesn't know if he can trust her.

Part 2. The Doctor and his friends are forced to escape through the forest vault after they are surrounded by the Weeping Angels.

The Doctor suspects something isn't quite right with the daughters of the family that protects the streets of Venice.

The Doctor returns to Amy on the night before her first child is born.

Part 2. Scientists discover something isn't right beneath Earth's crust while drilling.

Amy battles an alien in France with Vincent Van Gogh.

The Doctor investigates a mysterious staircase in a building where people can go up, but never down.

Part 1. A message on a cliff; a puzzle box that opens from the inside; the fates draw closer for the TARDIS.

Part 2. The fates draw close around the TARDIS.

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?

Part 1. The Doctor, Amy and Rory receive a secret summons that leads them to the Oval Office in 1969. Enlisting the help of a former FBI agent and the irrepressible River Song, the Doctor promises to assist the President.

Part 2. The Doctor is locked in the perfect prison. Amy, Rory and River Song are being hunted down by the FBI. But, with the help of President Nixon and Neil Armstrong, the Doctor is able to mount a rebellion against an alien invasion.

The TARDIS is marooned onboard a 17th-century pirate ship whose crew is being attacked by a mysterious and beautiful sea creature. Becalmed and beset by cabin fever, the pirates have numerous superstitious explanations for the Siren's appearance.

By following a Time Lord distress signal, the Doctor puts Amy, Rory and his beloved TARDIS in grave danger.

Part 1. A solar tsunami liberates doppelgangers from their human 'originals' in a futuristic factory. Can the Doctor prevent all out civil war?

Part 2. The Doctor must convince terrified factory-workers to work with their doppelgangers to overcome a monster of their own making.

The Doctor assembles an army to face the Battle of Demons Run - and River Song has something to tell him.

The TARDIS crash lands in 1930's Berlin, bringing the Doctor face to face with the greatest war criminal in the Universe. And Hitler.

Every child is scared of monsters, but George's terrified pleas for help reach the Doctor. Because George's monsters are real.

Amy is trapped in a quarantine facility for victims of an alien plague. Can Rory save her before she is killed by kindness?

The TARDIS lands in a hotel where every visitor's room contains their deepest, darkest fears. What lies in wait in the Doctor's room?

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