26 Season
694 Episode
Doctor Who - Season 13 Episode 3 Terror of the Zygons (3)
The Doctor and the Brigadier begin to realise who the Zygon imposters among them are while Sarah Jane discovers a secret tunnel to the underwater ship.
- Year: 1989
- Country: United Kingdom
- Genre: Drama, Action & Adventure, Sci-Fi & Fantasy
- Studio: BBC One, BBC Television
- Keyword: time travel, space, alien, curious, introspective, bewildered, exhilarated
- Director: Verity Lambert, Sydney Newman, Donald Wilson, C. E. Webber
- Cast: Sylvester McCoy, Sophie Aldred