Doctor Who - Season 13 Episode 4
UNIT attempt to track down the Zygon ship while Broton prepares to have the Skarasen attack London.
- Seánra: Drama, Action & Adventure, Sci-Fi & Fantasy
- Stiúideo: BBC One, BBC Television
- Eochairfhocal: time travel, space, alien
- Caitheadh: Sylvester McCoy