Harry and Sarah walk into a trap on the uninhabited Earth. Dr. Who: Tom Baker. Harry: Ian Marter. Sarah: Elisabeth Sladen. Styre: Kevin Lindsay. Erak: Peter Walshe. Zake: Terry Walsh.

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

A fossilized hand is discovered in a quarry explosion. Tom Baker, Elisabeth Sladen. Zazzka: Roy Pattison. Abbott: David Purcell. Watson: Glyn Houston. Miss Jackson: Frances Pidgeon.

The Doctor's escape is jeopardized when the spaceship runs out of fuel. Tom Baker, Louise Jameson. Jackson: James Maxwell. Idas: Norman Tipton. Idmon: Jimmy Gardner.

The tracer brings the TARDIS to the planet Tara. Romana finds the fourth segment disguised as part of a statue but is then taken prisoner by Count Grendel of Gracht. Grendel is plotting to seize the Taran throne from the rightful heir, Prince Reynart, and has mistaken Romana for an android duplicate of the Prince's betrothed, Princess Strella, to whom she bears a remarkable resemblance. The Doctor is meanwhile captured by Prince Reynart's men Zadek and Farrah and taken to his hunting lodge, where he is forced to repair an android double of the Prince to act as a decoy for potential assassins.

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 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.

The Doctor and Romana's search for the Key to Time leads to the warring planets of Atrios and Zeos. Tom Baker, Mary Tamm. Shadow: William Squire. Marshal: John Woodvine.

The TARDIS arrives on contemporary Earth, where Sarah comes into contact with what appears to be a fossilised human hand. This is in fact the last surviving fragment of a Kastrian called Eldrad, who was blown up in space as a punishment for attempting to wipe out his own people.

When Robots threaten Sherwood forest, the Doctor helps Robin Hood to stop the evil Sheriff of Nottingham.

A mysterious Professor Thascales invites UNIT to a demonstration of his new TOMTIT (Transmission Of Matter Through Interstitial Time) machine. The Doctor quickly discovers that the Professor is not who he seems to be. Compiles episodes 21 and 22 from "Doctor Who" series 9.

The TARDIS arrives on Fang Rock, a small island off the English coast, around the start of the 20th Century. The Doctor and Leela seek shelter at a lighthouse where the island's only inhabitants - Ben, Vince and Reuben - operate the recently-installed electric lamp to warn ships off the treacherous rocks.

The Master's machine unleashes a slew of creatures and dangers from the past on the Doctor and the men from UNIT. If he wants to stop him, the Doctor will need to follow the Master throughout time, all the way back to ancient Atlantis. Compiles episodes 23 and 24 from "Doctor Who" series 9.

The Doctor takes Adric and a young air hostess named Tegan Jovanka, who has come aboard the TARDIS by accident, to the planet Logopolis, home of a race of mathematicians whose help he hopes to enlist in reconfiguring the outer shell of the TARDIS. The mysterious, wraith-like Watcher brings Nyssa from Traken to join them and warns of impending danger - something that is borne out as the Master arrives and kills a number of the Logopolitans.

Both the Doctor and the Master form their own separate ancient alliances against each other. The Master seizes control of Atlantis and the Doctor must enter the labyrinth to rescue Jo from the Minotaur. Compiles episodes 25 and 26 from "Doctor Who" series 9.

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

Part 1. The Zygons, a race of shapeshifting aliens, have been living in secret amongst us on Earth, unseen until now! When Osgood is kidnapped by a gang of Zygons, the Doctor, Clara and UNIT must scatter across the world in a bid to set her free.

Part 2. Shapeshifting Zygons are everywhere in the UK, and there is no way of knowing who to trust. With UNIT neutralized, only the Doctor stands in their way. But how do you stop a war? And what can the Doctor do to save his friends?

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.

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 and Clara travel to the haunted Caliburn House. Within its walls, a ghost hunting Professor and a psychic search for the Witch of the Well. Her apparition appears, but is she really a ghost?

When ghosts of past and future crowd into their lives, the Doctor and Clara are thrown into an adventure that takes them to the very end of the universe.

The Doctor and Clara are on the most beautiful train in history but a deadly creature is stalking the passengers. The Doctor must race against the clock to defeat the terrifying Mummy.

Part 1. The Doctor and Donna must uncover the truth behind the Nodes and the Data Ghost to uncover the library's secret.

The Doctor is trapped, powerless and terrified, on the planet Midnight, as a knocking on the wall begins.

When people start to disappear, a young woman finds cryptic messages bleeding through from a mysterious stranger called the Doctor.

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.

Part 1. When an Underwater Base comes under attack, the Doctor and Clara must save the frightened crew and defeat an impossible threat. But what is behind these terrifying events? And can they really be haunted by Ghosts?

Part 2. On a remote Army outpost, a fearsome alien warlord, the Fisher King, sets in motion a twisted plan to ensure his own survival. The ripples will be felt around the universe. Is this chain of events inevitable? And can the Doctor do the unthinkable?

When Robots threaten Sherwood forest, the Doctor helps Robin Hood to stop the evil Sheriff of Nottingham.

Part 1. Captured by Vikings, the Doctor and Clara must help protect their village from Space Warriors from the future; the Mire. Outnumbered and outgunned their fate seems inevitable. So why is the Doctor preoccupied with a single Viking girl?

Part 2. England, 1651. The deadly Highwayman 'The Knightmare' and his sidekick stalk the dark streets of London. But when they find loot that's not of this world, they come face to face with the Doctor. Can the Doctor avoid the hangman's noose?

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