One Piece: Clockwork Island Adventure (ONE PIECE ねじまき島の冒険,, ~Nejimaki Jima no Bouken) is the second movie in the popular anime and manga series, One Piece. It takes place after the Loguetown arc and before the Straw Hats go up the Reverse Mountain.
After their ship is stolen, Luffy’s crew is adrift for over a week, leaving plenty of time to lament the loss. Then, to add insult to injury, they are tricked and caught by the 'Thief Brothers', which inadvertently ends up being their first lead as to who has their ship. The dastardly deed was pulled off by none other than the nefarious Trump Siblings, a group of pirates that terrorize Clockwork Island. Now, the gang must travel to Clockwork Island to, not only reclaim their vessel, but also to potentially find the world famous treasure - the Diamond Clock.