Mawdryn Undead: Part One 1983
7.6 235 With the TARDIS trapped on a collision course with a strange, orbiting spaceship, locked in time as well as space, the Black Guardian recruits a deceitful and ill-natured British student to kill the Doctor.
Runtime: 24
Starts: Peter Davison, Janet Fielding, Sarah Sutton, Nicholas Courtney
Director: Peter Moffatt