It is the second film to focus on Chopper, as it is a retelling of the Drum Island storyline from the manga. It features Franky, Nico Robin, and the Thousand Sunny, who weren't present in the original version.

As the Straw Hat Pirates sail through the Grand Line.A line of geysers erupted from under the Going Merry. And the whole crew find themselves flying over the island. Unfortunatly, Chopper fell off the ship and was separated from his friends. Luffy and the others landed on the other side of the island. Chopper meanwhile finds himself being worshiped as the island's new king by the animals. To make matters worse, a trio of human "horn" hunters are on the island. The leader, Count Butler is a violin playing/horn eating human who wants to eat the island's treasure to inherit immense power. Will Luffy & the rest be able to prevent the count from terrorizing the island? And will they be able to convince Momambi that not all pirates are bad?

Relaxing on a cozy beach, the Straw Hat Pirates are taking a rest from their quest. Right until Luffy noticed the Going Merry has been hijacked and sailed off from the beach. This leads them to search the ship and find the thief who took it from them. They ran into a duo named the Theif Brothers, who informed them that their ship was stolen by a group of pirates called the Trump Kyoudai. When they encountered the Trump Pirates, Nami ended up getting kidnapped as well as Luffy's hat. They tracked down the pirates to their base on Clockwork Island. Now Luffy, Zoro, Sanji, Usopp, and the Theif Brothers must reclaim the Going Merry, Save Nami, and get back Shank's straw hat.

There once was a pirate known as the Great Gold Pirate Woonan, who obtained almost one-third of the world's gold. Over the course of a few years, the pirate's existence faded, and a legend grew that he disappeared with his gold to a remote island, an island pirates continue to search for. Aboard the Going Merry, Luffy and his crew, starved and reckless, are robbed of their treasure. In an attempt to get it back, they wreck the getaway ship, guided by a young boy named Tobio, who's a captured part of El Drago's pirate crew. El Drago's love for gold has driven him to look for Woonan's island, and thanks to Woonan's treasure map, he finds it. During this time, Luffy's crew have been split up, and despite their own circumstances, they must find a way to stop El Drago from obtaining Woonan's gold.