As April's connection to Corakinus strengthens, a sinister invasion begins.
London is infiltrated by an eerie alien and the team must battle to save Tanya.
A dreadful new monster threatens the school, and the gang must unite to fight against it.
When monsters invade Coal Hill School, four students must form an unlikely alliance.
The Doctor and Nardole try to save Manhattan from brain-swapping aliens.
A murdered convict is sent back to Earth by the devil as a respected judge.
An ex-jewel thief and his new robot butler begin a strange friendship.
The sole survivor of a British rocket's crash is revealed to pose a deadly alien threat.
Sci-fi. A spaceship land outside a boy's house but those who visit it become zombie-like.
The ghost of a nightclub singer persuades his shy twin to bring his killer to justice.
The insane computer Xoanon refuses the Doctor's help and prepares to destroy the planet.
The Doctor discovers the terrible truth about Xoanon and realises that he is to blame.
The Sevateem prepare to launch an attack to free their god, Xoanon.
The Doctor arrives on an alien world and is accused of being 'the evil one'.
How the first actors to play the Doctor created the characteristics he is famous for.
The Doctor finds himself recruited by River Song and hurled into a chase across the galaxy
The Doctor faces the Time Lords in a struggle that will take him to the end of time.
Trapped in a world unlike any other, the Doctor faces the greatest challenge of his lives.
The Doctor and Clara find themselves in an alien world, hidden on a street in London.
Terrifying footage discovered in the wreckage of Le Verrier Space Station.
With UNIT neutralised, only the Doctor stands in the way of the Zygons.
The Doctor and friends must try and save Osgood from a rogue gang of Zygons.
Deadly highwayman 'the Knightmare' and his sidekick come face to face with the Doctor.
A hitman whose victims are sent back in time discovers the mob wants to close 'the loop'.
When the Doctor arrives in Victorian London he finds a dinosaur rampant in the Thames.
The forces of the universe's deadliest species gather, drawn to a mysterious message.
The Doctors embark on their greatest adventure in this 50th anniversary special!
The Bringer of Darkness, the Oncoming Storm, the Doctor, the Warrior - A Time Lord!
Sarah takes the identity of a woman who looks just like her after witnessing her suicide.
Jason washes up on the shores of a strange and mysterious land: Atlantis.
The terrifying Skovox Blitzer is ready to destroy all humanity.
The Doctor turns bank robber when he is given a task he cannot refuse.
What will the Doctor find at the end of the universe? Listen!
A Dalek fleet surrounds a lone rebel ship and only the Doctor can help it.
When robots threaten Sherwood Forest, the Doctor must join forces with Robin Hood.
The war with Dyad is all but lost when Rachel's plan forces a broken Sarah to concede.