There once was a pirate named Woonan. He was known as the Great Gold Pirate, who obtained almost a third of the world's gold. Over the course of a few years, that 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 Luffy wrecks the getaway ship, freeing a young boy named Tobio, who was a captive 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. Meanwhile Luffy's crew split up and despite their own circumstances, they must find a way to stop El Drago from obtaining Woonan's gold.