The sharks in the water may not be as bad as the sharks on Macleay Island. That's what Lockie finds when he clashes with hard men and stands in their way. Peter, a hermit mariner, meets the retired Lockie and hours is found by him, murdered. Lockie with his detective ally, Georgia Leah, sets out find why. He unearths a poignant love story between Peter and Lorna, and, with Lorna, becomes such a nuisance to an international, new technology drug smuggling organisation, that the gang takes Lockie and Lorna on the sinister sloop The Red Admiral. The gang takes them for their last journey anywhere - except Lockie and Lorna don't see it that way… Their survival instinct kicks in and with a little help from their friends, mainly Scotty and Georgia… All hell is let loose on the night-time waters of Queensland's Moreton Bay.