The seventh season of the One Piece anime series are produced by Toei Animation and directed by Kōnosuke Uda adapted from Eiichiro Oda's manga of the same name. The season was released in Japan as a single chapter, called "Escape! The Naval Fortress & The Foxy Pirate Crew". It deals with the Straw Hat Pirates' infiltration of and escape from a Marine fortress to reclaim their confiscated treasure.... Wikipedia