Elias is the top rescue boat in Cosy Cove, so when he's called upon to rescue a boat in the midst of a huge storm, it's no surprise that he's up to the job. His heroic rescue operation becomes the talk of the town, and news spreads to a larger neighbouring port that's in search of a new rescue boat to replace its retiring one. Leaving his friends and home behind, Elias is wooed by the prestige of working in ‘Big Harbour’. One evening, he overhears a local gang talking about mining illegal precious metals. Elias must turn to his old friends from Cosy Cove for help. But since Elias left them behind so abruptly, will they be open to helping him before it's too late?