Donna Tucker finally follows her dream to continue her education whilst Dave finds the words of a veteran sobering. Tony and Joy fall out but are reunited when Joy goes into labour early.

The day of Major Kieran Voce and Captain Kate Butler's wedding arrives and Lieutenant Jeremy Forsythe and the lads help to rescue the day. Donna Tucker starts to get closer to her tutor.

The arrival of a new soldier in the regiment and the return of Eddie Nelson's brother into his life causes trouble.

The girls get together and Donna confesses her love for Mark. The men go on exercise and whilst Sergeant Sally Hawkins wants to join in but her fun is short lived when a fire breaks out.

As the repercussions of Tony Wilton's death are felt, everyone starts to move on.

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.

The Tuckers receive help from Nancy to find the truth about Macaulay. Jo Farrell seeks Marsha Stubbs help to woo Collette but it starts to backfire when their partners become suspicious.

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.

B Company are on exercise in the Northern Territory of Australia and are introduced to their Medical Officer who ruffles a few feathers. Their true test is during an exercise in the outback when all their skills are put to the test.

The men take part in an exercise to locate a downed Australian World War Two aircraft ends when the weather takes a turn for the worse and it causes Major Rory Taylor's dreams to be cut short.

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.

Michael and Marsha start to drift apart when these each pursue their own agendas. Joy Wilton has to decide if she should follow her heart and Jeremy Forsythe has to overcome his own enemies to triumph.

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.

Michael and Marsha Stubbs have to decide if they should give their marriage another chance. Corporal William Markham joins B Company and his wife creates friction amongst the other army wives.

B Company are sent to South Africa on exercise and to help build a new medical centre. The locals situation lead Jeremy Forsythe and Andy Butcher to let matters of the heart cloud their judgement.

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.