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...

Determined to become stronger and challenge the toughest seas in the world, Luffy and his crew decide to go into training. When they finally reunite years later, they will meet brand new enemies and adventures!