The entire Straw Hat crew begins to search for Luffy's important straw hat after he wakes up to find it missing. Meanwhile, Usopp and Chopper, while exploring a ship that seemed to be empty, happen to find a pirate who is sick and decide to treat him back on their Thousand Sunny. Shortly after that, they see a bird holding onto Luffy's hat, and the crew begins to chase it while dealing with the unexpected appearance of the Marines and Sea Kings. Source: One Piece Wiki Note: double billed with Toriko 3D film.