Poster of Cast and Crew in Doctor Who - Season 12 - Episode 8 - The Ark in Space (4)

Doctor Who - Season 12 - The Ark in Space (4) (Episode 8)

Plot: The Doctor tries to protect the humans still in cryogenic suspension from the Wirrn, who are determined to use Earth as their new breeding ground.
Episode Aired On:
Saturday, February 15 1975
50 years ago