Based on a storyline in Gideon's Risk. An employee's theft gives Gideon a chance to reopen an old murder case but he finds himself up against a formidable lawyer, Sir Percy Richmond (Raymond Huntley).

Based on storyline in Gideon's March. Famous racing driver Jack Hedley has been fiddling the books and is caught by his accountant Geoffrey Palmer, who he kills to keep him quiet. Mechanic James Culliford gives him an alibi because he owes his life to him. Gideon investigates and Hedley's mistress needs to die too. A rare case where the murderer gets away with it.

New storyline. The famous Balaclava regimental silver is going missing pieces at a time from the Highlanders London HQ with fakes being put in their place. Gideon is called in by the elderly General (Finlay Currie) to find out who is doing it but comes up against regimental pride and secrecy. Keen goes to Amsterdam and Paris (library shots used) to find out where the silver is being copied and sold off. The result is a shock to Gideon. Also starred Allan Cuthbertson and Gordon Jackson.

New storyline. A tale of boys gone wrong. Chris Kirk (Howard Knight) has been mothered too much but has an overbearing father, Police Surgeon, Doctor Kirk (Anthony Bate). Cornered by 3 leather coated, knife wielding yobs who want to steal the shotgun his father bought him, he shoots one. Believing he has murdered him, he goes on the run and meets a boy who has escaped from Borstal. They go to his brother's place so he can arrange their escape from the country but the shot boy's father (George Sewell) finds out and wants to kill the kid who shot his son. A powerful story filmed mainly around London's East End.

New storyline. Four teens are led into a life of violence by Anton Rodgers who has upper class pretensions and lives on a Chelsea houseboat with parties every night. Rodgers plays a contemptuous sadist whose idea of fun is hurting people, mirroring teen crime at the time. This was the last show and the series ended on a high note. Also starred Derek Fowlds and Annette Andre.