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...

The Straw Hats have been stuck in a struggle for survival ever since Eneru made the ominous prediction that "in three hours, only five humans will be left standing on the island." Separated from each other, the crew eventually cross paths on the battlefield where the war for Skypiea is being waged!