Stranded and hungry at sea, Luffy, Zoro, and Nami face a monstrous assault that separates them. While washed ashore, they encounter Medaka, a local girl with a tragic tale. The island suffers under the tyranny of Pirate Ganzack, who has enslaved the men, including Medaka's father. Determined to save their friend and the oppressed villagers, Luffy, Zoro, and Medaka embark on a daring mission to infiltrate Ganzack's stronghold.