
In order to free Nico Robin from the clutches of the World Government, the Straw Hats and their allies must invade the judicial island, Enies Lobby, and take on the government's premiere clandestine unit: CP9.
As the Straw Hats and their allies approach Enies Lobby on Rocketman, they hatch a plan to save Robin before she passes through the Gates of Justice. Meanwhile, Spandam holds a meeting with CP9 where they await Lucci's return in the Tower of Justice.
Luffy launches a one-man assault on Enies Lobby, and the rest of his allies work to break the first gate's defenses. What awaits Galley-La and the Franky Family at the second gate is a showdown of massive proportions!
Robin and Franky are finally brought before Spandam while Luffy continues to blast through waves of marines. Galley-La and the Franky Family still have one giant to deal with, and the main gate closes to halt Rocketman's entry.
The Straw Hats struggle to catch up to Luffy, who is already on the main island wreaking havoc for the Marines. Meanwhile, Robin learns from Spandam that the terms of their deal have changed, and he somehow has rights to a buster call.
Luffy makes it just outside the courthouse when Blueno of CP9 appears before him, and on the main road, the Straw Hats near the courthouse plaza aboard Sodom and Gomorrah. Meanwhile, Sogeking comes across a dejected Oimo.
Kaku and Kalifa of CP9 are offered a rare chance for new powers and are each served a devil fruit. The Straw Hats finally arrive at the courthouse plaza when Spandam receives an urgent call, and he realizes things are much worse than previously reported.
The Straw Hats storm the courthouse where the three-headed judge Baskerville awaits to enact violent judgment upon them. On the roof, Luffy thanks CP9's Blueno for the strength of his opponents, and he activates a new ability.
Twenty years ago, Nico Robin grew up on Ohara in the West Blue, striving to become an archaeologist like her mother. When Robin met Saul, a giant who washed onto the shores of Ohara, her life would forever be changed.
Robin's mother Olvia was on the run from the World Government, and tragedy was unavoidable from the moment Professor Clover and his colleagues decided to continue their research. No one on Ohara was safe.
To prove his undying loyalty to Robin, Luffy makes a defiant statement to the World Government.
Franky stages his own rebellious act against Spandam while Luffy's crew makes a daring leap of faith to hopefully gain entrance to the Tower of Justice.
The Straw Hats split up to find the correct key before Robin’s fate is sealed. Zoro finds and engages Kaku in battle, and Sogeking attempts to steal a key from the sleeping Jabra.
Sanji faces his greatest weakness: fighting a beautiful woman! Meanwhile, Franky begins to run low on cola energy, but he must battle the peculiar Fukuro to obtain more of his refreshing fuel from the kitchen.
Refreshed and refueled, Franky turns the tide in his battle with Fukuro. Meanwhile, Zoro and Sogeking must find a way to compensate for their self-imposed handicap, and Chopper unfortunately comes face-to-face with Kumadori.
Chopper's abuse of his rumble balls results in a monstrous side effect. In the meantime, Nami learns how Kalifa's new devil fruit powers sapped Sanji of his strength, and a determined Luffy finally catches up to Spandam, Lucci and Robin.
As the Marines eke out a comeback against the Straw Hats’ allies, Spandam makes the call Robin most dreaded. In the meantime, Lucci and Luffy begin their mutually anticipated duel, while Nami and Kalifa's fight enters the next phase.
Kalifa attempts to counter Nami’s mirages, and something must be done to save Chopper, still on a monstrous rampage. Zoro, now uncuffed, resumes his duel with Kaku. As Sogeking reaches his limit against Jabra, Sanji reappears, and he is hunting wolves.
As Nami drags the wounded Sogeking from the fight to go find Robin, he suddenly counters with a better idea. In the meantime, Sanji faces off against Jabra's Iron Body Kenpo, and, to break the latter's defenses, Sanji unveils his latest technique.
Spandam drags Robin along the Bridge of Hesitation and finally arrives at the Gates of Justice. Meanwhile, Zoro continues his clash with Kaku, and as things become more desperate, Zoro's rage begins to manifest as a dark aura.
Luffy gives Franky the opening he needs to head for Robin. The cyborg runs into trouble at the start of the bridge, but all is not lost as a lone sniper appears atop the Tower of Justice. Despite these minor victories, the buster call commences.
With time running out, Luffy activates another special ability. The vice admirals of the buster call are shocked to see Luffy taking on Rob Lucci and recall how the CP9 enforcer, even in his youth, held strongly to a dark sense of justice.
Lucci corners Luffy, weakened by his new ability’s aftereffects. Back on the bridge, Spandam makes an attempt on Robin's life, so Franky jumps into action. Meanwhile, the rest of the gang is about to drown in the flooded passageway.
The Straw Hats watch as Enies Lobby burns, and Franky fears for his men when he hears of a successful attack against them. Luffy resumes his fight against Lucci while 200 Marine captains bear down on his crewmates.
Luffy has finally defeated Rob Lucci, and good news arrives that the Franky Family and Galley-La foremen are all alive and well. As the Straw Hats scramble to escape the Marines, they hear a voice telling them to jump into the sea.
Enies Lobby and the buster call fleet are out of sight, but the Going Merry begins to break apart. The Straw Hats are intercepted by Iceburg aboard his company ship and discover how the Merry found her way back to them one last time.