Rose is taken home, but a spaceship crashes in the Thames and London is closed off... Enter the Slitheen!

Time is running out for the Doctor as Downing Street announces mankind's first Interplanetary War.

Rose and the newly-regenerated Doctor continue their adventures together in this Christmas Special episode. Christmas becomes a time of terror for Planet Earth, as the whole of mankind falls under the shadow of the alien Sycorax. Rose needs the Doctor's help, but can she trust a man with a new face?

The Earth has been moved, and it's a race against time as Donna and the Doctor try to find it before the Daleks destroy everything; they head for the Shadow Proclamation and the Medusa Cascade. Meanwhile on Earth a veritable bevy of ex-companions join together to contact the Doctor and take down the Daleks. Can Captain Jack, Sarah-Jane, Martha Jones and Rose find the Doctor in time...