Mann's investigation of a soldier going AWOL uncovers a sexual attack on an officer's wife, and that officer's inexplicable reluctance to do anything about it.
In West Berlin, a British solder has injured a call girl, and rather than face charges, defects to the East Germans. To spare the soldier's wife, Mann goes "Over The Wall" too in an attempt to bring him back.
In Aden, a tough sergeant badly beats a native boy, enough to hospitalize him. Mann is sent to look into it, but midway through the investigation, the sergeant meets with a deadly accident.
Sgt. Mann's suspicions are aroused when a soldier confesses to a crime he obviously didn't commit. Mann's determination to prove the man's innocence unearths an unusual love interest.
Detailed to investigate a charge that a soldier in Cyprus is guilty black-market activities - and suspected murder - Sgt Mann finds that he needs his wits about him to track down a determined criminal.
Investigating a difficult case, Sgt Mann finds his movements restrained by 'internal arrangement'. Much to the anger of a superior officer, he skilfully sidesteps his orders - and makes a surprising discovery.
When a regiment returns from Borneo and complains that their unit is being haunted by a ghost, Sgt Mann turns ghostbuster to allay their fears - but investigating ghost stories can prove ill-advised.
At a base where boys are trained as would-be soldiers, one has nearly committed suicide and another several petty crimes in the nearby town. Mann learns that an overzealous boy officer may have pushed them to the breaking point.
A Scots contingent serves duty in a west German town, but they fight and bully their way amongst the locals. When three of them murder the owner of a pub, Mann must discern who is responsible.
When a soldier dies of exhaustion on a routine hike with pack, The officers above him are at odds with whether he was intentionally overworked or if he was unfit for service to begin with.
When a German civilian is run down by a group of British soldiers in a stolen car, Mann finds out the pressures on the men that pushed them to do it, and those involving the base and it's personnel with local politics.
In West Germany, an officer's suicide leads to a supposed refugee hospital, where almost twenty years after the war, there's few residents, but dangerous drugs in abundance.
Assigned to look into accusations that a British Army patrol unit ransacked a jungle village, SIB officer Sgt. Mann ends up by unmasking a dangerous killer - and war comes to the Borneo jungle.
