"The Mysterons" (sometimes referred to incorrectly as "Mars – 2068 A.D.") is the first episode of Captain Scarlet and the Mysterons, a British Supermarionation television series created by Gerry and Sylvia Anderson and filmed by their production company Century 21 Productions (originally AP Films or APF). Written by the Andersons and directed by Desmond Saunders, it was first officially broadcast on 29 September 1967 on ATV Midlands, although it had received an unscheduled test screening in the London area five months earlier.