The Doctor takes Rose back through time to Wales, Christmas 1869. In Victorian Cardiff, the dead are walking and creatures made of gas are on the loose. The time-travelers team up with Charles Dickens to investigate Mr Sneed, the local Undertaker. Can they halt the plans of the ethereal Gelth?

Adam discovers that life as a Time Lord s companion isn t as easy as it looks. The Tardis s latest destination is in the far future, where Satellite 5 broadcasts to the entire Earth Empire. But anyone promoted to Floor 500 is never seen again, and the Doctor suspects humankind is being manipulated. Nothing escapes the eye of the sinister Editor, but just who is he working for? While the Doctor and Rose investigate Floor 500, Adam realizes the material advantages of knowing the future and is determined to cash in.

Continuing the story from Episode 4. Downing Street announces mankind s first Interplanetary War, but the real danger is much closer to home. When the Doctor, Rose and Harriet Jones race against time to unmask the villainous Slitheen, Rose s mum and boyfriend hold the key to salvation. Can the missiles be stopped?

For Martha's first trip in the Tardis, the Doctor takes her back in time, to Elizabethan England. When they find William Shakespeare with a lost play, suspicions of evil are confirmed when deadly witch-like creatures are discovered. Can history be saved?

The Doctor and Rose travel back to London in 1941, at the height of the Blitz. A mysterious cylinder is being guarded by the Army, while homeless children (living on the bombsites) are being terrorized by an unearthly child. Rose meets the dashing Captain Jack Harkness has she found a hero even better than the Doctor?

In the season finale, will the Master defeat the Doctor?

The Master announces a meeting with the Toclafane.

Has Captain Jack finally caught up with his Doctor or is it too late?

The Doctor must remember who he is in order to defeat the Family.

The Doctor makes appearances in hidden tracks on 17 DVD's to send a message: Don't Blink!