On a rescue mission, Major Nicholas Welling saves the life of Captain Jenna Marston. Fast forward two years, and a training exercise goes too far. Welling asks for a divorce.
Disaster occurs when Bates tries to capture two gunmen solo. Dean and Karina are forced to make a moral decision about escapees. Jenna breaks off her relationship with Welling.
Welling tries to impress a visiting brigadier during the annual review. Dawes suffers a severe injury when she and Karina take a fall. Welling finally begins divorce proceedings.
An ex-squaddie disrupts a family open day, making demands of the defence minister and threatening attendees. It becomes a race against time to save Gaynor's missing daughter.
Bates instigates a mass brawl. Jenna finds herself becoming romantically attracted to a local councillor. A boxing after-party at Dean and Karina's house takes an interesting turn.
Dean questions whether his proposal to Karina was a bad idea. Welling and Marston are caught in a passionate clinch. Valerie learns that Nick is in line for promotion.
