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694 Episodio
Doctor Who - Season 4 Episode 28 Episodio 28
The Doctor is unable to convince the colonists that the Macra exist and an attempt to brainwash his companions results in Ben betraying his friends.
- Año: 1989
- País: United Kingdom
- Género: Drama, Action & Adventure, Sci-Fi & Fantasy
- Estudio: BBC One, BBC Television
- Palabra clave: time travel, space, alien
- Director: Verity Lambert, Sydney Newman, C. E. Webber, Donald Wilson
- Emitir: Sylvester McCoy, Sophie Aldred