Saturday, 21st May 2005 6:30PM BBC One (42 mins)
It is 1941 and the Blitz is raging. A mysterious cylinder is being guarded by the Army, while homeless children, living on the bombsites, are being terrorised by an unearthly child. And when Rose meets the dashing Captain Jack Harkness, it seems she may have found a hero better than the Doctor himself.