Mirroring the anti-fascist marches of the time and based on a storyline in Gideon's Vote, this features Sir Arthur Vane's fascist V-Party who are opposed by the anything but peaceful Peace Party. Someone is trying to kill Vane (Roland Culver).

Based on a storyline in Gideon's March. Alfie Bass portrays an elderly German Jew who has suffered at the hands of the Nazis in WWII. There is a state visit by the German President and, as a chemist, he gets his hands on 10 oz of nitro-glycerine. Enough to kill his target and possibly hundreds more at the parade in Whitehall where Gideon's wife and son are also watching. Also features Gerald Flood as Deputy Commissioner Rae Cox.

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. Morna Copthorne's (Angela Douglas) body is found by a lake. Gideon is asked to go to the small village of Wendley (this case unusually did not feature London) to sort the matter out as her father is a big name at the M.O.D. She is the girl everyone loved so how did she die? As Gideon and Keen interview witnesses about her past, a new picture emerges of a young rich girl out of control. Norman Bowler plays a black man in this and reflected the racial tensions of the time. Also stars Kay Walsh.

Based on storyline in Gideon's Fire. Patrick Allen plays someone who socially mixes with rich people and finds out when they are away so he and his accomplice (Patrick Bedford) can steal their jewels. Bedford is caught when a cop on a bike sees a car at a rich place where the owners have told him to keep a watch on it as they are away. His wife (Jean Marsh) tries to blackmail Allen so he kills her which leads to Gideon being publicly accused on attacking Bedford by a very nasty lawyer as they close in on Allen who is ready to flee the country. Also starred Alec Mango and Richard Davies.