1. The Moscow Subway Murders
Now promoted to Detective Chief Inspector, Bulman, frustrated with the office-bound nature of the job, is soon challenged by an intriguing murder case.
Strangers — Series 4
2. The Loneliness of the Long Distance Copper
A convict makes a daring prison break but leaves a trail to ensure his recapture is handled by the inter-city squad. He has an old score to settle with supervisor Lambie.
3. A Dear Green Place
A routine assignment — escorting a prisoner from Glasgow to London — turns into something altogether different when the woman escapes and her escorts on a merry cross-country chase.
4. Stand and Deliver
The squad investigates a series of armed robberies committed by a gang of modern-day highwaymen.
5. The Flowers of Edinburgh
Bulman and Willis arrest a man carrying an incriminating roll of film. This triggers off an enquiry which takes them to Edinburgh, where they tangle with a gang specialising in political blackmail.
6. Soldiers of Misfortune
The squad investigates a murder and a series of knee-cappings committed by rival groups of mercenaries.