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...

As Luffy and his crew attempt to leave the laboratory, Caesar Clown undergoes a dramatic transformation. Can Luffy actually stop his dreadful ambitions?! And when Doflamingo finally makes his appearance, the situation takes a dramatic turn!!