Major Tom Cadnam is taking part in an exercise against an old rival who he later discovers has been having an affair with his wife whilst he's been in Northern Ireland.

The men are charged with cleaning up rubbish due to a national strike. CSM Chick Henwood finds his loyalties tested as his brother is one of the strikers.

A large scale theft is discovered from the military stores. Colour Sergeant Ian Anderson hears he has won commission into the Intelligence Corps, but his good news is overshadowed when he discovered a large amount of equipment in his care is missing. the theft puts a big question mark not only over Ian's chances of becoming an officer but also over his future with the army.