Devon, 1703. On the night of the Great Storm, the infamous smuggler Tom West confronts his lover, Grace, convinced she's betrayed him to the authorities. After a violent encounter that leaves Grace dead and her cottage in flames, Tom flees, taking Grace's daughter Molly to join his renegade crew.

As the years pass, Molly - now disguised as the young man Orlando - rises through the ship's ranks, outshining the men around her. But Molly remains haunted by her mother's death and the mystery that surrounds it. Driven by her need for answers and a desire for revenge, Molly strikes out by herself, intent on forging a legacy all her own ...