CI5 discover that a possible terrorist attack is being planned, and the only clue they have in solving it is a German girl who is found collapsed in a church and suffering from amnesia.

Silver bullion is being shipped into Britain via the Iron Curtain, only for it to be hijacked by one of the group's own officials.

Bodie and Keller, an old acquaintance from his days in the SAS, go undercover in order to trap a would-be assassin by posing as hitmen offering to do the job themselves - in order to fake the killing. But Keller turns out to have an ulterior motive.

A post-operative ward in a hospital is held to ransom by a newly-released convict who plans to make a fortune, setting up his own foxhole at the top of a nearby building. CI5 hatch a plot to bring him down before he takes a fatal shot at the hospital.

A leader of a criminal gang offers to surrender himself if in exchange he is guaranteed protection for his family.

Whilst investigating a bombing plot Doyle is shot and left for dead in his flat, and as the hospital fights to save his life, he seems unable to decide whether he wants to live or die...meanwhile, Bodie goes on a chase to find Doyle's assailant.

A sacked former African Head attempts to get reinstated in office using the help of the British Government, but the plan is sidetracked by one particular civil servant who now wants him dead.