26 Season
694 Episode
Doctor Who - Season 9 Episode 20 The Mutants (6)
The Doctor is forced to help the Marshal cover up his actions with the Investigator but Jo and the others attempt to escape to expose him.
- Year: 1989
- Country: United Kingdom
- Genre: Drama, Action & Adventure, Sci-Fi & Fantasy
- Studio: BBC One, BBC Television
- Keyword: time travel, space, alien
- Director: Verity Lambert, Sydney Newman, Donald Wilson, C. E. Webber
- Cast: Sylvester McCoy, Sophie Aldred