Rocketo Garrison wakes up on board a ship to discover he has been kidnapped by a band of treasure hunters led by Spiro Turnstile. When they later encounter the mighty King of the Atlas Ocean, they are given advice on how to navigate the Hidden Sea. Meanwhile, Jordan Scarletto has been called to a private audience with a Prince of Lucerne and given a top secret mission that can, if successful, change the balance of power in the New World.