The Straw Hats visits with an island known as Mecha Island, where a fisherman sings a classic folk song of a Golden Crown. Searching for that mysterious treasure, they look for a hidden entry. The leader, Ratchet, impressed with the find and also in search of the Crown himself of the island, invites the team to join him and also the team together with Ratchet along with his henchmen input the cave. The hawaiian islands authentic form, is that of a turtle, as it happens. Ratchet, who had known this uses his mechanical castle to be able to utilize it, to simply take the world over. Now the Straw Hats have to stop Ratchet, but in addition the beast, from crashing into a nearby island.