Behind-the-scenes look at the making of Doctor Who. There's a trip to Manhattan to find out how to recreate 1930s New York in the heart of south Wales. The producer and director of episodes four and five visit the New York locations they plan to reproduce and the visual effects supervisor shows what they need to make Manhattan in Cardiff.

With the Family of Blood breathing down the neck of the Doctor's alter ego, time is running out for John Smith. There's a glimpse of a life more ordinary (for the Doctor) as well as a vision of the dark future ahead. The complexities of filming the episode are revealed, as well as the logistics behind the explosive ending. Features interviews with head writer Russell T Davies and Freema Aygeman on one of her toughest assignments yet.