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.

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.

Whilst taking part in an infantry exercise, the company's armoured personnel carrier is forced off the road. Jeremy Forsythe struggles to introduce his fiancé to the regiment. Cate Hobbs receives bad news when she goes for a pregnancy test.

Cutbacks to the armed forces budget causes an exercise to go disastrously wrong. The debt collectors catch up with Deborah Briggs and she is forced to take desperate measures to earn money.

The regiment faces hostilities on Deliverance Island. Mark Hobbs is captured by the enemy and the Jeremy Forsythe has to face up to reality when the CO is injured. Tim Forrester receives some bad news about Sam Sheridan.