Buggy the Clown, Mr. 2 Bon Clay, and Mr. 3 become Luffy's allies while Warden Magellan uses his Venom-Venom powers to try to stop Luffy from breaking his brother out of Impel Down.
Luffy sneaks into the Naval prison Impel Down on a mission to save his brother, Ace, and runs into some former enemies who might actually be able to help him.
The Straw Hats come into contact withWarlord of the Sea Bartholomew Kuma's bare paw and it transports Luffy to an unknown island where he encounters Amazons and scatters his crew all over the world.
Luffy's attack on a Celestial Dragon in an effort to rescue Camie the mermaid from being sold to the highest bidder gives the Navy a reason to send the Admirals after Luffy, but a mysterious outlaw unexpectedly lends thecrew a hand.
The Straw Hats face off against Gecko Moria's zombie generals on Thriller Bark and worry that one of his warriors, who has the skills of Luffy, may be too powerful.
The Straw Hats lose control of their ship and end up on an island full of zombies known as Thriller Bark, where they become the targets of the dreaded Gecko Moria.
The Baroque Works will stop at nothing to promote their rebellion, even killing the princess, and it is up to the Straw Hats to stop their evildoing before it is too late.