The crime drama set in the 1960s goes out with all guns blazing – literally – in an action-packed finale that sees Pc Joe Mason, Sgt George Miller, Oscar Blaketon and Alf Ventress tackling East German spies who are determined to kill a British agent. The first inkling of trouble comes in the shape of a man with head wounds who nicks David’s taxi and is then found wandering around, dazed and confused. He doesn’t know who he is, he says. But when a woman’s body is found on the moors, Joe is pretty sure his forgetful thief is somehow linked to her death. Then Sheena Buckley (Clare Holman – Lewis) turns up and says the injured man is her husband, Gordon. He doesn’t remember her, but he seems to recognise the dead woman... Meanwhile, at the Aidensfield Arms, Oscar and Alf are befriending James Moncrieff, who says he fought in the war close to Alf. Moncrieff also tells Sgt Miller he’s an undercover agent and that traitor Gordon Buckley killed the dead woman. DI Jackson, from Special Branch, backs him up, but Buckley’s got his memory back and says he’s the British agent and Moncrieff and Jackson are traitors. When guns are drawn it becomes clear who’s telling the truth and Oscar is shot trying to save Buckley.
