Flint returns to Nassau and encounters a dilemma. Eleanor turns to an unlikely source for help. Rackham works to restore his reputation. Vane gets an unexpected prize.
Stranded at sea, Flint pushes Silver to his limit. As Nassau prepares to repel an invasion, Rackham takes the reins, while Max gets her house in order. To stave off defeat, Vane makes a difficult choice.
Rogers comes under attack while moving a prisoner. Violence erupts on the Walrus. Silver and Madi are put to a test. Billy sees a new role for himself in the coming battle.