Plot Summary:The Hammersley successfully extracts Australian aid workers from the unruly Samaru Islands. It sails again to help search a family's pet dog adrift. Thus they discover an illegally intruder yacht with a Taiwanese captain and Hungarian 'backpack tourist' passengers, all dodgy. As their motor is bust, Charger is left aboard with Spider, but both are knocked-down so the quartet can escape by speedboat. Captain Flynn must worry about prioritizing his rescue missions and badly wounded Charger.
Following the crew of the patrol boat HMAS Hammersley, as they patrol the northern sea border of Australia. They have to deal with foreign fishermen poaching fish, smugglers and with political unrest in a neighbouring island state.