Geronimo1967
Still without his dematerialisation circuit, the trapped "Doctor" (Jon Pertwee) and his assistant "Jo" (Katy Manning) are summoned to a prison for violent felons to investigate a mystery surrounding the rather menacing "Keller" machine. It's a sort of high-tech gadget that substitutes the need to execute these miscreants with a process that soaks up all their evil and leaves them like the placid "Barnham" (Neil McCarthy). Well, needless to say, the thing has gone a bit wonky and there's a bit of a riot broken out at the establishment. Meantime, the "Brigadier" (Nicholas Courtney) has his work cut out for him organising the security at the first world peace conference. The Chinese delegate is killed and the "Doctor" is diverted from his orig...