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694 Episodio
Doctor Who - Season 13 Episode 4 Episodio 4
UNIT attempt to track down the Zygon ship while Broton prepares to have the Skarasen attack London.
- 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