The Hand Island no Bouken special recounts a crucial event that occurs during the New World arc, occurring just before the events of One Piece Film Z. The story takes place in "Cannon Town," a location where a parent and child practice their craftsmanship. The focus of the story revolves around these individuals and a commodore who is stationed at a nearby marine base. Furthermore, the special includes a newly animated version of the manga's first chapter in the form of a flashback sequence.