In the wake of Charles Town, the world lives in fear of Captain Flint. But when his campaign of terror crosses over into madness, it falls to John Silver to locate the man within the monster. Meanwhile, with Eleanor Guthrie gone, Jack Rackham and Captain Charles Vane struggle to secure Nassau for the ages. All will be tested when a new threat arrives. It knows them. It understand them. And in the blink of an eye, it will turn them against each other.

Silver gets pushed to his limit by Flint. Nassau readies itself to fight back against an invasion. Rackham steps up and takes control while Max gets her house in order. Vane must make a difficult choice if he hopes to avoid defeat.