Based on storyline in Gideon's Risk. Red Carter (Mike Pratt) and brother Syd (David Gregory) buy wrecked cars then steal new cars of the same make and swap details and after a respray, sell them for lots of money. Tiny Bray who spent 4 years in prison because of them tries to get evidence of this but is seen and is beaten by Syd and dies, but there is a witness (Audrey Nicholson). The police trick Syd into confessing but then the harder job begins of getting brother Red who is trying to kill the witness. Trevor Bannister plays the constable who is assigned to keep her alive for the trial. The climax of the show is when the villains are cornered and pull guns, and the police are unarmed. Gideon says that the average burglary nets only £71 whereas a car theft (2,484 stolen one month in 1965) gets £500.