วันพีซ เอพพิโซดออฟแมรี่: เรื่องราวของเพื่อนอีกคนหนึ่ง

After Nami steals the Going Merry, Roronoa Zoro, Usopp, and later Monkey D. Luffy and Sanji (along with Johnny and Yosaku) set after her and wind up in Cocoyasi Village, Nami's hometown ruled by the tyrannical fishman Arlong. It is here that Nami's past and true motives come to light.

When Nami falls ill, the Straw Hats seek medical care for her on Drum Island. There they meet reindeer doctor Tony Tony Chopper and the Wapol Pirates.

The Straw Hat Pirates are on a quest to save the desert kingdom of Alabasta. A civil war brews among the sands, one started and stirred by the hand of none other than Crocodile and his corrupted Baroque Works gang. The stakes run ever higher as Princess Vivi's homeland threatens to tear itself apart. More than lives are on the line.

Experience the inspiring moments that launched Luffy and the first four members of his crew on their grand adventure to find the One Piece! It’s all here—from Shanks giving Luffy the straw hat, to Nami facing the Fish-Men at her hometown. Along the way, Zoro finds his swordsman’s zeal, Usopp pays for his pranks, and Sanji sizzles up the Baratie. Join the crew where it all began in the waters of East Blue.

The Foxy Pirates challenge Luffy’s crew in the New World, but the fun and games go belly-up when the Navy’s most brilliant tactician steps in. Before the Straw Hats even know what hit them, they wind up on the island of Nebulandia, an infamous death trap for Devil Fruit users. Luffy must team up with his Davy Back nemesis for a harrowing rescue mission when Zoro, Sanji, and some Foxy Pirates are held hostage!

The Straw Hats embark on a dangerous trip to the sky where their destination comes straight out of a fairytale. The island of Skypiea and its grand city of gold await among the clouds, but a clash of winged clans and a man who calls himself God won’t make things easy! Only Luffy can resist this God’s mighty power and light the mysteries of the past.

The special takes place during the two year before the Straw Hats reunite on Sabody. Luffy is currently in Rusukaina training to get stronger to take on the New World. However the training is interrupted when Hancock's sisters, Marigold and Sandersonia, are kidnapped by the Byrnndi World, a pirate who was locked away on Level 6 of Impel Down but escaped during Luffy's invasion to save Ace, in order to lure Hancock to him and use her as a hostage against the World Government due to her Shichibukai status. Thus Luffy and Hancock head off to confront him and save Hancock's sisters.

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.