Spain invades Nassau without much resistance; Silver tries to fix relations between the pirates and the former slaves; Flint and Eleanor work together to survive the Spanish invasion.
Captain Flint prepares for the final battle, while Billy tries to save Captain Vane from being hanged; Max must decide who she can trust; Eleanor Guthrie finds herself in charge of Nassau.
Silver and his crew travel to Skeleton Island in pursuit of Flint; Madi is presented with a proposition; Rogers struggles to hear Eleanor; Billy commits himself to the group.
Silver gives Flint the last details of the schedule with the location of the ship. Eleanor's situation changes when the supply ships get sunk in the bay. Meanwhile with Mutiny rising up aboard the Walrus, Gates makes a vital decision.
Flint and his crew wage war against the world; Eleanor is offered clemency; Vane takes issue with Rackham's methods; one of Nassau's most notorious individuals returns.
Flint launches a final, desperate attack to destroy England's hold on Nassau; Silver makes an irreversible decision; Rackham confronts Rogers; Nassau is forever changed.