1 Season
32 Episode
Captain Scarlet and the Mysterons - Season 1 Episode 21 Treble Cross (1968)
Captain Black engineers the death of chief test pilot Major Gravener, who is retrometabolised as a Mysteron agent as part of the Mysterons' plan to destroy the World Capital, Futura City.
- Country : United Kingdom, United States of America
- Genre : Action & Adventure, Animation, Sci-Fi & Fantasy
- Studio : Associated Television
- Director : Sylvia Anderson, Gerry Anderson
- Cast : Francis Matthews, Ed Bishop, Donald Gray, Cy Grant
