Jack takes a detour to a banana plantation to help his long-time friend and former brother-in-law, Declan, recover a cache of stolen guns. It soon becomes clear that there is more to the gun theft than first appeared.

When a high-end caravan is stolen, everyone becomes a suspect and it also turns out that everyone has something to hide. Joan's frustration with Jack puts her life in danger after thieves return to steal her motorhome.

As Jack and Joan prepare for her first southern hemisphere Christmas by the beach, a reef dive goes catastrophically wrong, and Joan does all she can to save an injured diver. Joan and Jack later discover the accident is really a case of sabotage.

Sparks fly when Jack and Joan are forced to share a hotel room in a small town pub on New Year's Eve. When a blaze breaks out after midnight, Jack and Joan are determined to discover who is really behind the blaze.

Jack reconnects with Elyse, the daughter of Rosemary and the bride Jack left at the altar. Elyse, a surf lifesaving champion, believes someone tampered with a drug test, causing her to be banned from her sport just before the national championships.