One Piece Film: Gold

There once was a pirate known as the Great Gold Pirate Woonan, who obtained almost 1/3 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 Tabio, 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.

A short prequel to One Piece Film: Gold featuring the nine Straw hat crew members on the ship, planning what to do when they arrive the Casino.

The Straw Hat Pirates meet Olga, a girl who has escaped the island Alchemi. Alchemi was known for its metal production, and for the creation of the extremely valuable Pure Gold, but the island disappeared two hundred years ago. Olga is now being pursued by Marines, interested in Pure Gold. Gildo Tesoro, who controls the Navy HQ and black market, hears of Olga and hires treasure hunter Mad Treasure to track her down. The Straw Hats join forces with Olga in search of the Pure Gold, while she plots to takes advantage of them and use the treasure to become rich herself.

The story begins somewhere between the Thriller Bark arc and the Sabaody Archipelago arc. The main villain's name is "Golden Lion" Shiki. 20 years ago he lost a battle against Monkey D. Garp and Sengoku and was imprisoned in Impel Down, but managed to escape. After that he starts to collect his crew and steals Nami to make her his navigator. Luffy tries to get to Shiki's hideout to free his friend.