André Morell is "Pitt" - in jail awaiting hanging for murdering a prostitute. At the last minute he contacts "Insp. Brown" (Terence Morgan) with information about master spy "Leonidas" who is about to take a top scientific secret behind the iron curtain - in return for his life! Together with his sidekick Anthony Oliver ("Insp. Newcombe") they set off to thwart this plan. It's a decent enough story that moves along a-pace. Yolande Donlan adds a bit of light relief as the fiancée who spends much of her time waiting around for her detective boyfriend and there are just enough red herrings to keep this intriguing, if a bit lightweight thriller, going for 75 minutes.
