Lunarville 7

"Lunarville 7" is the 15th episode of Captain Scarlet and the Mysterons, a British Supermarionation television series created by Gerry and Sylvia Anderson and produced by their company Century 21 Productions. Written by Tony Barwick and directed by Robert Lynn, it was first broadcast on 15 December 1967 on ATV Midlands.
Read article on Wikipedia