This Week in United Kingdom
Colony In Space: Episode Four
Last updated 01 October 2025
6:30pm-7:00pm BST (17:30 GMT) < > « »
U&Eden (adverts during broadcast)
Featuring: Jon Pertwee, Katy Manning, Tony Caunter, Roger Delgado, Bernard Kay, Morris Perry, John Ringham, Helen Worth
The Master arrives, posing as an adjudicator from Earth who has come to settle the dispute between the colonists and the miners. However, he has an agenda of his own. Meanwhile, the Doctor discovers a doomsday machine.
Synopsis Source: U&Eden listings
Broadcast Source: U TV Listings
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