Cal lives with his parents on Loyalty Island. Each winter, Cal's father - a captain of the island's trawling fleet - sets sail for Alaska; and though Cal is still too young to join them, he is old enough to know that everything depends on the fate of those few boats, thousands of miles north. When the fleet's owner dies, not only is the town's livelihood threatened, but so too is Cal's family. With winter fast approaching, and the fleet on the brink of extinction, Cal starts to suspect that his parents both have secrets to hide. Plagued by doubt, his loyalties strained and his moral compass thrown wildly off course, Cal is forced to make a brave and terrible choice.