Ken is a middle-aged fisherman who has captained the Sea Mac for more years than he can count. He has experienced heavy weather, rough seas and even death. However, nothing has prepared him for what he is about to endure on the island of Eilean Boghdoiri. His friend Paul, also the island’s lighthouse keeper, has gone missing. Ken and his deckhand Jimmie set out in search of him, only to discover things are far more complicated than initially thought. As they race to unlock the mystery, Ken and Jimmie find themselves fighting to stay alive. Will Paul ever be found, and, if so, can they make it off the island in time?