Century XVIII. North America. Amidst the chaos and violence of the French-Indian War, Shay Patrick Cormac, a brave young member of the Assassins' Brotherhood, undergoes a dark transformation that will definitively affect the future of the American colonies. After a dangerous mission that tragically fails, Shay decides to turn her back on the Assassins who, in response, attempt to end her life. Disowned by those he once called brothers, Shay embarks on a mission that will lead him to eliminate those who turned against him, ultimately becoming the most feared Assassin's hunter in history.