As a child, Monkey D. Luffy dreamed of becoming King of the Pirates. But his life changed when he accidentally gained the power to stretch like rubber...at the cost of never being able to swim again! Years, later, Luffy sets off in search of the "One Piece," said to be the greatest treasure in the world...

All-out war has broken out between the Whitebeard Pirates and the Navy. Whitebeard's crew is said to be the most powerful in the New World, but they'll have their hands full against the Navy Admirals and the remaining Warlords of the Sea. Meanwhile, can Luffy reach Navy headquarters in time to save his brother Ace?