The battle reaches a climax as the Doctor tries to unmask his other foes.

The TARDIS lands on a seemingly deserted space station in the distant future only to discover that they are not alone. While the station's crew rests in cryogenic sleep their Ark has been invaded by a parasitic insect race, the Wirrn.

The TARDIS doors open before it has materialised causing it, and everyone inside, to shrink. Landing in an English garden, the travellers discover that they are only an inch tall.

The Doctor receives a package.

Enemies evade the Doctor.

It's Christmas Day on a remote human colony and the Doctor is hiding from Christmas Carols and Comedy Antlers. But when a crashed spaceship calls upon the Doctor, he finds himself recruited into River Song's squad and into a chase across the galaxy.

The Doctor, Yaz, Graham and Ryan find their way back to Yorkshire and Yaz's family only to find something is stirring amidst the eight-legged arachnid population of Sheffield.

When the Doctor investigates a spate of mysterious deaths, he's surprised to meet another Doctor. The two must combine forces to defeat a human ally to the Cybermen. But are two Doctors enough to stop the rise of the CyberKing?

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

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?

The TARDIS has crashed, Clara is lost inside, and the Doctor has 30 minutes before his ship explodes!

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.

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.

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?

Why do floorboards creak? When a sinister landlord shows Bill and her friends the perfect house-share, they have no idea what lies ahead. Knock knock, who's there?