New York, 1777. As the American Revolution rages on the mainland, the British Navy prepares for action at sea. Against a growing fleet of American and French privateers, the Navy must maintain its blockade of Washington's vital military supplies. Caught up in the turmoil, junior officer Richard Bolitho finds himself having to make momentous decisions in the heat of battle, decisions that will affect the lives of many men, and perhaps the outcome of history.