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...

Someone has tried to take the life of Iceberg, mayor of Water Seven, and he's blaming Robin for the deed. But Robin has disappeared and left the Straw Hats under a cloud of suspicion! Now the crew members are on the run, looking for a way to clear their names. Could a mysterious group known as CP9 be to blame? Or is Robin really guilty?