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...

Luffy and crew arrive on the mysterious island of Egghead! There, they find Dr. Vegapunk's laboratory and all sorts of futuristic wonders. But when CP0 arrives to assassinate Vegapunk, a new adventure is kicked off!