In what appears to be a Sisyphean task, Newfoundland diver Shawn Bath has devoted himself to cleaning up the ocean floor one rotting tire at a time. He's already removed 15,000 pounds of garbage single-handedly. Through decades of commercial fishing and tourism, these Atlantic harbours became trash receptacles treated with an out-of-sight, out-of-mind attitude. Driven by passion and held back by bureaucracy, this inspiring story highlights the enormity of human-caused environmental damage and the power of an individual's determination to make the world a better place.