As a child, Monkey D. Luffy dreamed of becoming King of the Pirates. But his life changed when he accidentally ate the Gum-Gum Fruit, an enchanted Devil Fruit that gave him the ability to stretch like rubber. Its only drawback? He'll never be able to swim again--a serious handicap for an aspiring sea dog! Years later, Luffy sets off on his quest to find the "One Piece," said to be the greatest treasure in the world...

As Sanji is forced into a political marriage by the scheming Big Mom Pirates, Luffy and the Straw Hat crew must enter enemy territory to rescue him. The Straw Hats will need to work with allies they don't truly trust if they hope to succeed. But first things first: how will they crash the biggest wedding in the pirate world?!