Separated from Jamie and Victoria, the Doctor is catapulted in the TARDIS to London, 2023, where the city is engulfed in ice and held prisoner by vicious Ice Warriors.

The human colony of Nervosis face a dilemma when their alien patient is the target of a Thal Warship, unaware it is the last Emperor of the Dalek Empire.

The Doctor is trapped in a house with endless rooms and no way out, haunted by a young girl.

Researchers tracing a phenomenon across the glacier of Iceland discover a scruffy unconscious man in the snow - and an old enemy buried within the ice.

The Doctor finally returns to where he left Jamie and Victoria, only to find that something has warped the Earth and time into a dystopia. Salamander is back for revenge.