The Tuckers are forced back together when Macaulay is taken into care. Michael Stubbs is struggling with life as an officer and when an exercise goes wrong and the investigation by SIB brings Garvey into contact with his past.

A boxing competition causes dreams to be made and broken. Jo Farrell's money troubles start to spiral out of control as Collette sets her heart on a wedding they can't afford.

Brad Connor receives some bad news from back home. The men go on exercise against the Territorials and one reservist causes a lot of trouble for Jo Farrell and Steve Evans.

Paddy Garvey struggles to tell Dave Tucker his news until it's too late whilst Dave tries to woo back Donna. Complications during a live firing exercise results in a secret coming up to the surface.

New arrival Fusilier Andy Butcher struggles to make a good impression on his first day and his actions result in the Colonel's relationship being put under strain.

The remaining men fight to escape from Mokindi with one soldier sacrificing his life for the others. Dave and Donna have to decide if it is the end of the line for their marriage.