Dominion

Captain Black steals a Druzynik and plans to use to destory the Tereshkovo nuclear facility. Captain Scarlet and Captain Blue chase after him in another Druzynik and blow up Black's tank just before he makes it to the nuclear plant. They find Black unconscious with severe injuries. Black is taken to Skybase where he regains consciousness and announces that he has escaped the Mysterons control. He asks Scarlet to return with him to Mars to launch an attack on the Mysteron city. Scarlet tells Colonel White, who is skeptical but Scarlet knows this could be the only chance earth has.

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S02E13 - Grey Skulls