A group of pirates lead by Alvida plunder a ship, only to find a barrel which contains a strange boy named Luffy. Luffy is on a mission to find the legendary treasure "One Piece" and he befriends the ship's cabin-boy, Coby, who actually wants to become a marine officer. Luffy defeats Alvida and the two journey on in search of crewmates.

Luffy and Coby arrive at Shell Island, a Marine base. They meet the bounty hunter Roronoa Zoro, held under arrest by the infamous marine, Captain Morgan, and his son Helmeppo.

Luffy convinces Zoro to join his crew, but they must first defeat Captain Morgan. After freeing the island from Morgan's oppressive rule, Coby is accepted as a marine while the other two continue on their journey.

Out on the sea, Luffy almost loses his hat and reflects on his past, and how a pirate named Shanks influenced him. Afterwards, Luffy meets Nami, and Buggy the Clown's men.

In order to save herself and steal a map to the Grand Line, Nami tricks Luffy into allowing her to turn him over to Buggy.

Mohji and Richie show up for revenge after Buggy's humiliating defeat in the previous episode, and Luffy meets a small dog guarding his master's store, even though he knows that he is long dead.

Enraged by the actions of Buggy's crew, the city's mayor rushes to fight Buggy himself, but the Straw Hat Pirates come to his rescue. Zoro fights Cabaji, despite still being wounded from his previous encounter with Buggy, while Luffy faces the clown pirate himself and Nami searches for the map to the Grand Line.

Buggy's link to Shanks is revealed, and when he rips the straw hat Shanks gave Luffy, his rage knows no bounds. Who will win in this clash between Devil Fruit users?

Nami form an alliance becoming the navigator of the crew, but not a full member yet. They arrive in Syrup Village looking for a suitable ship. On this island they know the liar Usopp, who also has ties to the Shanx.

When trying to convince his rich friend, Kaya, to give the Straw Hats a ship, Usopp is told to stay away from her by her caretaker, Klahadore. However, when Usopp and Luffy later see him conversing with a strange man, they learn of a plot to kill Kaya.

After learning of Captain Kuro's evil plan, Usopp runs back to the village to warn Kaya, only to find that after all his years of lying no one believes him.

Usopp resolves to keep his story of pirates attacking the town a lie by making sure none reach it. Luffy, Zoro, Nami, and Usopp then try to keep the Black Cat Pirates at bay.

The Straw Hats manage to take out most of the opposing Black Cat Pirates, so Jango orders the Nyaban Brothers to attack. Meanwhile, after getting hypnotized by Jango, Luffy gets himself stuck under the collapsed mast of the Black Cat Pirates' ship.

Captain Kuro himself arrives at the scene, and with Zoro too injured to fight, Luffy being incapacitated, and the other two being too weak to handle him, things seem hopeless. However, Kaya herself appears to bargain with Kuro.

Zoro and Buchi (of the Nyaban Brothers) face off once again as Luffy and Kuro begin their fight. Usopp orders the Usopp Pirates to run away with Kaya, but Jango goes after them. A flashback reveals how Captain Kuro faked his death with Captain Morgan and how he became Kaya's butler.

As the fight between Luffy and Kuro is close to an end, the Usopp Pirates do their best to avoid Jango.

Kuro's ultimate attack, "Shakushi", attacks everything in the area, whether friend or foe, and Luffy becomes enraged by his lack of regard for his crew. Will Luffy's determination overcome Kuro's sheer speed?

With Usopp now in the crew and a new ship, the Going Merry, under their command, the Straw Hats head to an island said to hold a fabled treasure, only to encounter a strange man stuck in a treasure box that has also been looking for this treasure.

While Usopp & Luffy fool around with the ship's cannon one day, Zoro dreams about his childhood and the promise he made to Kuina.

The crew meets Johnny and Yosaku, Zoro's former companions, and they set sail for the Baratie restaurant in search of a cook.

Sanji, a cook at the Baratie, helps a starving pirate named Gin. Luffy begins his job as a waiter to pay for the damage he did to the Baratie, and tries to convince Sanji to join his crew.

Gin returns to the Baratie with his also-starving captain, Don Krieg, to whom Sanji once more gives food, but Don Krieg betrays the cook once he regains his energy.

It is revealed that Chef Zeff was a great pirate known as Red Leg Zeff. Gin explains the catastrophe the fleet met in Grand Line when they encountered Hawk-Eyes Mihawk, and Krieg attempts to take control of the Baratie.

As Nami steals the Going Merry, Mihawk has returned to finish the job, but Zoro challenges him to a duel in order to achieve his dream.

Mihawk leaves after defeating Zoro, so Krieg continues his invasion and has Pearl, one of his stronger crewmates, attack, and Sanji reveals his fighting skills. Meanwhile Johnny and Yosaku leave with Usopp and the wounded Zoro to go after Nami.

With Zeff held captive by Gin, Sanji has no choice but to take Pearl's hits, and he reflects on why Zeff means so much to him.

Gin finishes off Pearl, claiming that he wants to kill Sanji himself. Still wounded, Sanji faces Gin while Luffy attacks Don Krieg.

When Gin refuses to kill Sanji, Krieg uses a poison gas on him. Luffy seems to have the advantage in the fight until Krieg pulls out his explosive Battle Spear.

Even after taking several hits from the Battle Spear, Luffy refuses to give up.

After the battle, Gin decides to go back to the Grand Line with Krieg despite still being poisoned, and Sanji makes the difficult decision on whether to stay or to go with Luffy just as Yosaku comes back with news that he knows where Nami is.

The crew chases after Nami, who stole their ship, and Yosaku takes time during the trip to explain about Arlong and his Fishmen to Luffy and Sanji. Meanwhile, Usopp, Johnny, and Zoro arrive at the island Nami docked at.

Zoro is captured by the fishmen after Usopp and Johnny ditch him, and it's revealed that Nami was part of Arlong's crew the entire time. When a group of Fishmen attack Cocoyashi Village, Usopp comes to the rescue.

After Zoro escapes with Nami's help, she tries to prove her loyalty to the Arlong Pirates by appearing to kill Usopp. Meanwhile, Luffy's group finally arrives at the island.

Johnny tells the others about Nami killing Usopp, and Luffy does not believe them until Nami appears herself and confirms it. She tells them to stay out of her business and leave without her, but Luffy stubbornly decides to stay on the island. Usopp returns, revealing that Nami only pretended to kill him, and Nami's sister, Nojiko, starts to explain why Nami is acting the way she is.

Nojiko starts her story about Nami's childhood and their adopted mother, Bellemere. Despite being poor and none of them being related by blood, they had a happy life.

Nojiko continues her story, explaining how their life was ruined when the Arlong Pirates first took over the village.

When a marine officer under Arlong's pay confiscates all the money Nami stole over the years, in order to one day buy the village from Arlong, the villagers decide that enough is enough and fight back, despite Nami's pleads that they do not and that they'd all be killed. Upon seeing Nami's sorrow, the Straw Hats head for Arlong Park.

The Straw Hats face the Fishmen themselves as the villagers watch from the sidelines.

Arlong has trapped Luffy in the ocean and Zoro faces the six-sword wielding octopus Hatchan.

With Hatchan defeated, two of the fishmen battle Sanji and Usopp. Things look grim for Sanji as he attempts to face Kuroobi underwater, and Usopp gets the chance to prove that he too is a brave warrior.

Arlong's officers have been defeated, but Sanji and Zoro prove to be no match for Arlong in their current state. However, with Luffy finally free, he just may be able to defeat the "most wicked man in the East Blue". Meanwhile, Nami finally gathers the courage to face Arlong.

Luffy returns to the fight, and the battle with Arlong versus Luffy begins.

The battle spreads into Arlong Park itself and Arlong is no longer holding back.

Arlong's reign of terror is over, and no one has anything on their mind except to party. As the crew celebrates, Nami reflects on her hometown and decides to officially join the Straw Hat Pirates.

As a result of defeating Buggy, Krieg and Arlong, Luffy now has the highest bounty in all of East Blue. News quickly spreads to Shanks, who celebrates Luffy's arrival into the world of pirates by partying with Mihawk, despite already being severely hungover.

After his fight with Luffy, Buggy was sent flying to another island with several body parts missing. Thus, Buggy begins his journey to find his crew and his body parts, making some unlikely friends.

With Buggy assumed to be dead, his crew fights over who will be the new captain, only to be captured by a tribe of cannibals.

The crew arrives at the last large town before the entrance to the Grand Line--Loguetown, the place where Gold Roger was both born and executed, where they stock up on supplies and sightsee. As Luffy heads for the execution platform where Roger was killed, old enemies are searching for him.

While searching for new swords to replace the ones shattered by Mihawk, Zoro meets a woman named Tashigi, who looks exactly like an older Kuina, who then helps him look.

Usopp manages to anger the daughter of bounty hunter Daddy the Father, and finds his own life at stake. When Daddy discovers that Usopp is the son of Yasopp, the only man to beat him, he challenges him to a duel.

In order to win a rare fish, Sanji enters a cooking contest and faces a woman named Carmen.

Luffy arrives at the execution platform only to be caught in a trap by Buggy and Alvida.

Miraculously saved from death by an unnatural green gust and a lightning bolt to Buggy, the Straw Hats rush out of Loguetown, only for Zoro to be stopped by Tashigi and Luffy to be stopped by Captain Smoker.

On a stormy night a girl called Apis escapes from the Marines and arrives at Straw hat's ship, but the girl upon knowing that they are pirates begins to hide some of the reasons which she is being wanted by the Marines. As the Straw Hats escape from the Marines, they get caught in the Calm Belt.

After escaping the clutches of the Marine fleet, the Straw Hats soon find themselves in an equally dangerous predicament - stranded in the Calm Belt!

The Straw Hats want to return Apis's dragon to his nest, but the Marines have them surrounded. Looks like it's time for another daring escape!

Even for Nami, finding the dragon's lost island proves to be tougher than looking for a needle in a haystack - or at the bottom of the ocean.

Zoro is left fighting with Eric while Luffy and the gang run to the ship in order to get to Lost Island, but only find more problems.

At last Admiral Nelson has seen through the ambitions of Eric, but takes it a little too personally and now the mystical dragon's life is in danger.

With his last breath, Ryuuji calls all his fellow dragons, and the Lost Island re-surfaced. Meanwhile Luffy takes out Admiral Nelson and his gang.

After leaving Warship Island the Going Merry is now towards the Grand Line, and the crew now returns to the Great Adventure.

Upon entering the Grand Line, the ship is swallowed by a giant whale, inside of which they discover a strange place. In addition, they are not the only ones there.

After hearing the story of Laboon the whale, Luffy comes up with a clever solution to his problems. From Laboon's caretaker, Crocus, the crew learns more about the Grand Line and how to navigate through it, since compasses are useless there.

Luffy and friends arrive at Whisky Peak, a town of pirate-lovers who hold them a feast.

Zoro battles a hundred members of Baroque Works, and discovers there is more to them than meets the eye.

Luffy, who does not realize the town is full of bounty hunters, engages in a battle with Zoro after he discovers that Zoro attacked the townsfolk, while Mr. 5 and Miss Valentine head for Princess Vivi.

Luffy's crew manages to become targets of Crocodile, one of the Shichibukai, and decide to help Princess Vivi. They also meet Miss All-Sunday, the second strongest member of Baroque Works and partner of Crocodile.

As Luffy and his crew are sailing in the Grand Line, Koby and Helmeppo are stuck doing odd-jobs for the marines back in East Blue, and encounter Vice-Admiral Garp.

Vice Admiral Garp mentors Koby and Helmeppo to become marines.

Luffy and friends land on Little Garden, a prehistoric island inhabited by dinosaurs and giants.

Nami and Usopp meet a giant named Brogy, while Luffy and Vivi encounter Brogy's rival, Dorry. The Straw Hats little suspect that Officer Agents of Baroque Works are on their tail.

Dorry, critically injured by exploding ale, blames the Straw Hats. Luffy is enraged that someone would pull such a cowardly trick to sabotage the giants' honorable duel.

Luffy tries in vain to convince the injured Dorry not to fight Brogy. The Officer Agents who sabotaged Dorry's ale further tamper with the giants' duel.

Having subdued the giants, Baroque Works makes their move. Mr. 3 introduces Zoro, Nami, Vivi, and Brogy to the slow torture of becoming living statues of wax.

Luffy attempts to rescue his friends but only accelerates the deadly waxing process. To make matters worse, Miss Goldenweek interferes and reveals her own terrifying ability.

Usopp frees Luffy from Miss Goldenweek's control. With Karoo's help, Usopp and Luffy rescue the others, who take on Mr. 5 and Miss Valentine. Luffy and Karoo pursue Mr. 3 and Miss Goldenweek into the forest.

After having a pleasant chat with Mr. 0 and encountering the "Unluckies", Sanji retrieves an Eternal Pose for Alabasta. The crew leaves Little Garden and sets sail for Alabasta.

Nami is sick, but the crew doesn't have a doctor to help her.

While looking for a doctor, the crew meets the pirate Wapol, who attacks them, but only makes Luffy send him flying. Meanwhile Smoker manages to intercept the conversation between Mr. 0 and Sanji and plans to go to Alabasta. Back with the crew they arrive at last to an island only to find out they're not welcome.

The Straw Hat crew manages to gain the trust of the people that attacked them, and are taken to the village, except for Zoro and Carue, who guard the ship. Luffy and Sanji must take Nami to the island's sole doctor who lives on a mountain-top. Vivi and Usopp discover the past of the island, and about the pirate Wapol from Dalton.

While Sanji and Luffy fight off the wilderness, the islander's worst nightmare turns true, as Wapol returns to the island. The doctor is discovered to be on the other side of the island, and Usopp, Vivi and Dalton rush to find her. Dalton however returns as he hears of Wapol's return.

Dalton faces Wapol, but only gets himself hit by arrows thrown by his former comrade Chess. An avalanche stops the battle, but injures Sanji. Luffy must carry both Nami and Sanji to the doctor, and begins his ascent.

The Lapahn help Luffy escape from Wapol, giving him enough time to climb to the castle where doctor Kureha lives. Vivi, Usopp and Zoro deal with the king's army in order to save Dalton. The recovering Nami meets a strange creature.

Nami asks Chopper to join the crew, but he isn't interested. Kureha tells Nami some of what was Chopper's background. After realizing the abilities that Chopper has, Luffy is eager to make him join the crew.

Doctorine continues to tell how Chopper lived his life and how the quack doctor Hiruluk took care of him.

More of Chopper's past is revealed, including the fate of doctor Hiruluk and Wapol's cruelties as the king. Meanwhile, Wapol reaches the castle where the crew is residing.

Wapol is determined to bring down Hiruluk's flag, and to do that, he engages Sanji, Luffy and Chopper in a fight.

Chopper demonstrates the abilities of Rumble Balls when fighting Chessmarimo. Dalton is uncovered from the avalanche.

After trying every trick in the castle, Wapol is finally hunted down by Luffy. The villagers along with Zoro, Vivi and Usopp start their ascent to the castle through a ropeway.

After finally been convinced to join the team, Chopper announces his intentions to Dr. Kureha, who doesn't take it too well; but after escaping from the castle, she has decided to give the whole Straw Hat crew a farewell gift.

Chopper joins the Straw Hat crew as they continue their journey to Vivi's homeland.

Crocodile appears to stop rampaging pirates. Luffy and his crew meet Mr. 2 Bon Clay who shows off his devil fruit power and Vivi sees a shocking sight.

Luffy separates from the rest of the crew, right after arriving at Alabasta's port city of Nanohana. The crew dons disguises while Luffy learns of Dance Powder.

While in Nanohana, the Straw Hats encounter Smoker and Tashigi. A powerful pirate named Portgas D. Ace appears.

Ace fights Smoker while the Straw Hats run for their ship. Luffy reunites with his brother, who has joined the Whitebeard Pirates after leaving home, and is searching for a former crewmate named Blackbeard who killed a fellow member.

Ace decides to travel with the Straw Hats, as he is hunting for a man known as Blackbeard.

After leaving Erumalu, the Straw Hats plus Vivi & Ace continue through the desert, facing the many dangers of it.

Nami and Vivi found themselves an easier way to travel in the desert and leave all men behind.

After hearing that a small village has fake Rebel Army bodyguards that have been keeping peace, Vivi asks the men of the crew to test if they're worthy of staying.

Still trekking through the Alabasta desert, the crew beats up a giant desert scorpion for lunch, while Vivi tells Nami about her past and her friendship with Kohza.

Ace fights against a bounty hunter, who claims to have defeated Blackbeard, although this was a lie to lure Ace out and challenge him in order to inspire his children to follow their dreams.

Zoro, Chopper and Luffy manage to get themselves lost and stumble across some huge underground ruins.

Baroque Works plan starts to take effect, and for that, the Number Agents gather to meet Mr. 0. Meanwhile, the crew finds out that the Rebel Army has moved out of Yuba and headed to Katorea, and the rebel leader Kohza is determined to attack.

In Yuba, Luffy learns that Toto was entrusted by Cobra to watch over the land and figures out a way to stop the sandstorm.

After the struggle, Vivi decides to go after Crocodile with the Straw Hats. The crew travels to the city of Rainbase, but run afoul of Smoker and Tashigi.

Most of the Straw Hats, along with Smoker, are trapped by Crocodile. Vivi reunites with the royal guardian Pell, but is captured by Miss All-Sunday. Crocodile reveals his invincible Devil Fruit power.

Baroque Works' plan to take over Alabasta is set in motion.

Most of the Straw Hats are helplessly trapped as Vivi tries desperately to get the key to their cage. but fails. Crocodile is contacted by someone known as "Mr. Prince."

The identity of "Mr. Prince" is revealed.

After escaping from Rain Dinners, the Straw Hats and Vivi cross the desert to Alubarne, where the final battle will take place.

Luffy is left for dead by Crocodile, but is helped by the mysteríous Miss All-Sunday. The rest of the Straw Hats reach Alubarna.

The revolution is on the verge of starting and the crew comes out with a plan that could stop it.

Vivi tries to call out to the Rebel Army, but fails because of a Baroque Works infiltrator in the Royal Army interferes.

Things look hopeless for Usopp & Chopper as they continue to suffer from every attack that the Mr.4 team makes. However, the tides may be beginning to turn as Usopp learns what it truly means to be a man.

Albeit severely beaten and bruised, Usopp and Chopper have finally defeated the Mr.4 team. However, Mr. 2 has figured out Sanji's weakness.

Though Mr. 2 discovers Sanji's weakness, Sanji still defeats his opponent after an evenly-matched fight. Meanwhile, before Vivi could give the word to blow up the palace, Crocodile appears.

Nami faces off against Miss Doublefinger and tries to figure out her new weapon that Usopp made, the Clima-Tact.

While Crocodile reveals to Vivi about the ancient weapon Pluton, Nami attempts to defeat Miss Doublefinger with her most powerful attack: The Tornado Tempo.

While Miss. Doublefinger's fight with Nami was challenging, Zoro is having an even more difficult time fighting Mr.1: A man who can change his entire body into steel - something that Zoro cannot cut. As Zoro nears death, he must discover the secret to "the breath of all things".

When Vivi reveals Crocodile's plan to Koza, he attempts to stop the fighting, but is shot. Crocodile reveals that he has set up a massive bomb in the city.

As Koza tries to stop the Rebel Army, both sides are once more fighting due to the intervention of Baroque Works. Vivi is thrown to her certain death when Luffy saves her and challenges Crocodile to a second round.

Luffy fights Crocodile with more success this time by using water, but still loses this round. Meanwhile, the other Straw Hats hurry to locate the bomb before it goes off. Nico Robin forces the king to take her to the tomb where the Pluton Poneglyph is hidden.

Crocodile joins Robin in the tomb, and orders her to translate the Poneglyph. Robin tells him that Pluton was not mentioned and that it was only about history, but Crocodile figures out that she was lying and stabs her in response. When Luffy recovers from the last round of fighting, he chases after Crocodile into the tomb.

Luffy fights with Crocodile by using blood on his fists. Meanwhile Vivi finds the bomb, and calls the Straw Hats together.

Vivi finds the bomb inside of the clock tower, but the Mr. 7 pair of Baroque Works are there to protect it. Vivi defeats them, but she realizes the bomb cannot be stopped so easily. It has a timer, and right before it blows up, Pell shows up and takes it into the atmosphere, where he sacrifices himself to save Alabasta.

Luffy defeats Crocodile by punching him through solid bedrock. When Crocodile falls, the rain-drops calm the soldiers.

Now that the battle has ended, the outcome is tallied. Igaram appears with proof of Cobra's innocence, as well as Koza telling everything. Tashigi and Smoker both are rewarded for taking on Crocodile, but neither one of them believes that is right, considering the Straw Hat pirates did all the work.

Luffy is rescued from the collapsed tomb where he fought Crocodile and brought into Cobra's palace to rest. When he awakens, a magnificent banquet is thrown for the pirates, then, the Straw Hats are invited to enjoy the hot spring steam room inside the palace.

It's the day for Vivi's speech and her decision whether or not to continue to be with the Straw Hats. Meanwhile, Bon Kurei and his crew attempt to protect the Straw Hats from Hina.

The Marines fail again to catch the Straw Hats. After escaping from Marines, Nico Robin (Ms. All Sunday) appears from inside of Straw Hats ship. She manages to persuade the crew to let her join. Pell is seen at the end standing over his own grave.

After the Going Merry narrowly escapes being hit by a "sea train", the crew meets an old woman, Kokoro, and her granddaughter, Chimney. Kokoro gives Luffy a map to Water Seven. Luffy, Nami, and Usopp buy boats driven by sea monsters called "yagara".

Luffy, Nami, and Usopp get strange greetings from the residents and they get to experience the roller coaster-like channels of Water Seven. Luffy find out that some pirates had been beaten at the hands of some powerful craftsmen; the Galley La Company. Chopper loses Robin and some strange new people threaten Zoro back on the ship.

The people who attacked Zoro reveal themselves to be the feared "Franky Family", though they're no match for Zoro. Luffy have their gold exchanged for cash. After, they meet a man who resembles Usopp, Galley La's carpenter employment foreman, Kaku. Usopp's cut of the money is stolen by the Franky Family.

Paulie makes his debut when he retrieves Usopp's stolen money as he runs from debt collectors. Kalifa shows Luffy, Nami, and Usopp around Dock No. 1 and tells them how Iceburg founded the Galley La Company. Kaku returns from the Going Merry and tells them that their keel is irreparably damaged.

Luffy refuses to believe that Galley La cannot repair the Going Merry. The two soon realize that not only is Usopp missing now, but the two brief cases that were returned to them are empty. Nami decides to head to Franky House and finds Usopp on the way in a pitiful state. As she heads back to the ship for help, Usopp goes to the Franky House himself.

Luffy, Sanji, Zoro, and Chopper follow Usopp's bloody trail to the Franky House, where they find him passed out in front. The four of them challenge the Franky Family only to find out that their real target, Franky himself, is gone and has taken the money with him.

Once they're back on the ship, Luffy has to finally tell Usopp that the Going Merry can no longer be repaired and that they've chosen to get a new ship without him. Usopp believes that Luffy has abandoned the dignity of their ship and says he's leaving the crew. That night, he challenges Luffy to a duel.

Usopp fights Luffy in order to decide who keeps the Going Merry; he fights harder than he's ever fought before. Luffy actually seems to pose no threat but all the while, he's remembering what great friends they used to be, sailing together on the same ship. Even after taking a harsh beating, Luffy defeats Usopp. They leave Usopp and the ship behind.

The Strawhats get themselves a hotel room. Nami finds the crew on the roof with urgent news: Iceburg has been shot. As the Galley La Company frantically search for answers, Nami and Luffy decide to check on his condition – only to be met by closed gates. Franky appears then to exact his revenge – with style.

In the streets outside of the hospital, Luffy fights Franky. Inside, Iceburg recalls seeing Nico Robin and another tall man before he was shot. The Galley La company run outside and stop Franky and Luffy and tell them that they suspect the Strawhat Pirates of the crime.

The Galley La Company continues to fight Luffy and Franky is enraged that they've stolen his opponent. An incredibly high tide called the "Aqua Laguna" is coming and Chopper and Sanji rush to warn Usopp. Luffy raises some chaos in order to meet with Iceburg and he demands to know what's happening. Iceburg says he wants to see Robin one more time.

In a bar, Franky talks with Kokoro about her theory on who shot Iceburg. The rumors she speaks of seem to have some truth as we see Robin meeting with someone from an organization called CP9. While the crew hide from angry residents, Sanji and Chopper discover Robin and she tells them what they've feared: she's responsible and she wants to part ways.

Chopper reunites with the others without Sanji and they discuss what's happened. Luffy decides that in order to know the full truth, they must catch Robin. Usopp attempts to repair the ship enough to withstand the Aqua Laguna and the Strawhats make their way to the Galley La Company.

The Strawhats (still missing Sanji) rush to Galley La where Robin and CP9 begin a raid. In Iceburg's room, Robin and the mysterious man Iceburg saw before, tell him that they've purposely placed the blame on the pirates. Their true aim is the blueprints he would've passed down to Paulie. Luffy separates from his group.

Robin speaks with Iceburg inside his room still. We already know that Robin can read the poneglyphs - and it seems Iceburg is the one with the blueprints to the ultimate weapon, Pluton. The true enemies are revealed to be Iceburg's own allies. Elsewhere, Luffy is tied up with Paulie after Paulie tells members of CP9 that his blueprints are fake.

Lucci tells Iceburg their hypothesis and has Kaku check his pulse to tell if the things he tells him are true. They suspect that Iceburg's friend from the past, Cutty Flam, is really Franky and it's revealed to be true. Therefore, Franky has the real blueprints. The Strawhat Pirates and Paulie break into the room where they find Iceburg and CP9.

Luffy and the others request that Robin comes back to the crew. She refuses and tells them that she cannot accomplish her "wish" if she were to stay with them. Robin turns to leave and CP9 try to hold the pirates back. Robin successfully escapes and Lucci shows those remaining his "transformation".

Lucci's transformation is a result of a Devil's Fruit; a Zoan Type leopard. He quickly disposes of the crew and CP9 tie up Paulie and Iceburg, leaving them alone as the building slowly burns down around them. In Franky's underground hideout, Usopp tells him his story and Franky is finally touched. In return, Franky tells him a little about Tom's contributions to Water Seven.

Usopp believes that the person who repaired the Going Merry in Skypeia was really the Going Merry itself. Franky says that the ship was inhabited by a spirit who enters ships who are dearly cared for. The spirit repaired their ship just enough for them to reach the next island. The doorbell rings from the sea side and the Galley La foremen enter.

The foremen discover Franky's hidden room and he fears they'll trample his memories. A long flashback ensues, covering Franky's past in Tom's Workers and how he and Iceburg helped create the Sea Train.

Spandam, a CP5 representative, was determined to get Tom proven guilty in his trial so he could get the blueprints. As Franky walked into the town, people from the government began to attack with the battleships he had personally constructed. Tom and Iceburg run to their shipyard where they're attacked by two ships which also destroy the others. Iceburg tells Franky that he has to take responsibility or he'll never forgive him.

Franky said that if a ship of his were to be used as a weapon, then it's no longer one of his ships. That enraged Tom and he punched Franky for the first time, telling him he had to take pride in the ships he created. He then told the judge that he would accept the punishment for both his previous crime and the recent attack. Franky tried to stop the train to Enies Lobby with his bare hands.

Chopper escapes the burning building with Paulie and Iceburg on his back and collapses outside. Iceburg tells Nami that CP9 threatened to destroy the Straw Hats if Robin didn't cooperate with them. Nami rushes to tell Chopper so they can go looking for the rest of the crew. Elsewhere, the foremen let go of the Going Merry so she would be destroyed at sea.

Paulie helps clear the name of the Strawhats but doesn't tell the mob everything he knows. He gets the mob to follow Chopper so they can search for the rest of the crew. Nami goes her own way so she can rush to the Sea Train. As Nami nears the station, Sanji, ahead of her, approaches the train

Nami and the conductors are rescued by Paulie when the Aqua Laguna floods the main station. A man hands Nami a letter he found from Sanji. It informs her that Usopp, Franky, and he are on board the train that had just departed. On board, he storms the cars. High up in the city, Nami speaks with Kokoro and spots Luffy, stuck in between two buildings, in the back streets where the Aqua Laguna will hit first.

Nami finally reaches Luffy and tells him that he needs to hurry before Robin reaches Enies Lobby. Chopper finds Zoro and hands him the Sandai Kitetsu so he can escape the chimney. Luffy pushes apart the buildings he was stuck between and Paulie grabs them all so they can escape the Aqua Laguna's massive wave.

Sanji fights his way through another train car and finds Usopp and Franky. Seeing how determined Luffy is to save Robin, Kokoro and Iceburg lends the Strawhat crew the use of another sea train, Rocket Man. The Franky Family shows up, pleading with Luffy to let them join them because they'll do anything for their leader.

The Rocket Man finally makes it out to sea. As the train connects with the tracks, Luffy has to rescue Chimney before she's thrown off by the wind. In the meanwhile, Iceburg has a flashback about when he finally met Franky again in Water Seven. With Luffy and Chimney safe in the train, Paulie tells his fellow carpenters who the real culprits were. The Strawhats, Franky Family, and Galley La Company form an alliance.

Luffy and Zoro perform a move that acts similar to a cannon and blasts a hole through the wall of the tidal wave ahead of them, opening up a channel for them to pass through. They miraculously pass through unscathed and the passengers rejoice. Sanji contacts the rest of the crew and fills them in on his current situation. Usopp separates from them but later, when Sanji and Franky are spotted, a man named Sogeking comes to their rescue.

Sogeking makes his grand entrance. Franky and Sanji aren't fooled by his costume but they try to humor him. They devise a plan first, then detach the last two cars and fight their way through the rest. Back in the Rocket Man, Luffy, Zoro, Nami, and Chopper get an outfit change; Nami shows off the weapon Usopp upgraded for her while he was still with them.

Kalifa updates the CP9 on the situation with Franky, Sanji, and Usopp. Sanji tells Franky and Usopp to go on without him so he can fight Wanze and his "Ramen Kenpo". Franky begins to fight Nero, CP9's "Weasel", and Sogeking meets with Robin.

Franky's fight with Nero continues. Nero discovers that Franky's weak spot is his back, so Franky lies down flat so he can't get to it. Nero demands that he fight seriously, so Franky gets up to perform his "Centaur" form. Sogeking talks with Robin and tells her that the crew knows about her reasons for leaving. Those on the Rocket Man encounter the discarded cars and Zoro slices them so they can pass.

Zoro clashes with "Ship Cutter" T-Bone. The fight is short and Zoro joins the crew again in the Rocket Man. On the Puffing Tom, Sanji beats Wanze beautiful, though Wanze thinks he's ruined his face. Franky finally gains the upper hand against Nero and defeats him. After beating their respective opponents, Franky and Sanji stand to fight against the other CP9.

After hiding under Robin's cloak for a few episodes, Sogeking finally shows himself. They stumble into the room with the CP9 and meet with Sanji and Franky. Sogeking produces a smokescreen. The four head into another car, detach it, and escape. It's not long before Blueno pulls their car back, though. Franky knocks down the wall so they can escape but ends up on the enemy car. Blueno opens a door then back in the Strawhat car.

Robin willingly follows Blueno into his improvised door and Sogeking and Sanji are left alone. For a while, Blueno explains a little of Robin's past involving the Buster Call. Back at the Rocket Man, Yokuzuna the frog jumps onto the front of the train, knocking them from the rails. After Kokoro speaks with him, he joins the group. The CP9, Franky, and Robin finally reach Enies Lobby and disembark.

The Straw Hats hatch a plan to rescue Robin, but as usual, Luffy can't wait to find a fight. Will his impulsive attack derail their mission?

Luffy manages to reach the main island, but the Franky Family's assault is stopped short by a couple of angry giants!

Luffy makes short work of a few hundred marines, the Franky Family takes down a giant, and the assassins of CP9 report back to Spandam!

Zoro's quick thinking - and a little help from a giant frog - sends the sea train soaring into the sky on a collision course with armed guards and their canine companions!

Nami electrocutes the enemy with a Clima Tact attack, but the bad guys have the Straw Hats surrounded until the Franky Family shows up with a couple of sea monsters!

Zoro, Sanji, Nami, and Chopper try to catch up with their captain, Soge King is nowhere to be found, and Luffy runs head first into a battle with Blueno!

Luffy shows off his new strength in a brawl with Blueno, Soge King befriends a giant, and a hulking sea beast makes the ultimate sacrifice.

While Luffy continues his battle with Blueno, Soge King's giant companions make their presence felt, and the assassins of CP9 experiment with Devil Fruits!

A blind Kingbull fights with his last breath to get the Straw Hats one step closer to their captain. Luffy kick his body into second gear to protect his friends from dangerous foes!

Luffy batters a baffled Blueno with his powerful new fighting style, and the cowardly Spandam begins to panic at the sound of the Straw Hats approaching!

Luffy and his crew are finally reunited and ready to rescue Robin, but the raven-haired beauty remains reluctant to rejoin her former mates despite Franky's urging.

Flash back to Robin's days as a young girl, her dangerous pursuit of forbidden knowledge, and her encounter with a friendly giant.

Robin's flashback continues with the heartbreaking arrival of her mother - and the government's cruel and brutal invasion of a peaceful island!

Professor Clover reveals a startling and sinister theory about the World Government, Robin reunites with her mother, and a giant joins the fight!

The painful story of Ohara - and Robin's younger years - draws to a tragic close. Luffy declares war on the World Government, and Robin finally changes her tune!

The Straw Hats are ready to begin the fight for Robin, but first, Luffy flashes back to memories of his childhood - and the man who made him want to become a pirate!

Zoro remembers the first time he met Luffy, and Usopp recalls the events that led him to join the Straw Hats!

Nami's heartbreaking past - and Luffy's epic battle with Arlong - are recalled in this flashback to the early days of the Straw Hats!

A flashback sheds light on how Sanji came to join the crew, and Chopper's backstory is revealed through memories of a visit to a snow-covered island!

A flashback reveals Robin's motives for cooperating with CP9, Nami's shocking discovery about the archaeologist's past, and Luffy's determination to save his friend!

Franky stands up to Spandam by destroying what the madman desires most, and the sound of the sea train spurs the Straw Hats to make a daring leap of faith!

Luffy races to rescue Robin while the rest of the Straw Hats set off in search of the five keys needed to unlock the archaeologist!

While Usopp and Zoro go head-to-head with a couple of animal assassins, Sanji teaches the most beautiful member of CP9 the secrets of making good tea!

Luffy runs into trouble trying to sail his way to Robin, Usopp and Zoro end up handcuffed together, and Sanji's inability to kick a women may lead to serious injury!

Chimney and Gombe show Luffy the secret passage that leads to Robin, and Franky puts on a display of raw punching power thanks to a few bottles of cola!

While Franky's brawl spills into the ocean, Usopp and Sanji attempt to overcome their handcuffs by outsmarting their opponents!

Determined not to be defeated by the heinous hair of a devious lion, Chopper risks life and limb by summoning the power of his Rumble Ball for a third time!

Travel back to ancient Japan for a madcap adventure starring the Straw Hats, some old friends and enemies, and a camel that eats lottery tickets!

The madcap throwback continues as Luffy and the gang - along with a crowd of characters from the Alabasta arc - competes for a priceless treasure hidden inside a tasty snack!

Nami battles a bathing beauty and her lethal bubbles, Chopper unleashes his inner beast, and Luffy inches ever closer to catching up with Robin!

Franky has a painful encounter with monster Chopper, and Nami gets scrubbed too clean to fight! Meanwhile, Spandam accidentally invokes the deadly Buster Call!

Zoro uses Usopp as a decoy in his battle with the beasts, and Nami discovers the secret that could be the key to survival in her brawl with the bathing beauty!

Franky and Nami come up with a plan to stop Chopper's rampage, but it could prove deadly to the not-so-little reindeer. Usopp and Zoro are thrilled to finally be free of each other!

Usopp's ill-advised attempt at bravery threatens to get him killed, but a familiar foot spares the sniper's life. Luffy struggles to even strike a formidable foe, and Franky races to deliver some very important keys!

Sanji evens the playing field in his CP9 slugfest by introducing his wolfish opponent to the burning power of the devil's leg!

Zoro finally lands a blow against the killer giraffe, but Luffy still can't find a way to break through against Lucci! Can Frank reach Robin before it's too late!?

Zoro unleashes a demonic nine sword fighting style on his giraffe opponent, Luffy buys time for Franky by ascending to second gear, and Robin refuses to give up hope of being rescued!

Spandam cruely drags Robin ever closer to the gates of justice, but the battle takes a turn for the better when the Sniper King makes a surprise appearance!

Luffy's battle with Lucci reveals the powerful secrets of the rubber man's second gear, and the Spandam's thoughtless Buster Call begins with a brutal barrage of cannon balls.

When an ancient tree is stolen by a madman with the power to freeze time, Luffy, Usopp, and Sanji track down the culprit in an attempt to save a village's annual festival!

Nami, Sanji, Usopp, Zoro, and company find themselves trapped in to tunnel filled with rapidly rising water. Meanwhile, Luffy musters the strength for one last stand in his battle with Lucci.

Flashback to the dark past of Rob Lucci as the young boy learns to dispense a cold, cruel, and brutal brand of justice. Back in real time, Luffy's battle with Lucci threatens to destroy the navy fleet.

Luffy's gigantic attack on Lucci takes a devastating toll on his body, Robin rejoins the fight, and the rest of the Straw Hats struggle to survive underwater!

Thanks to a little help from what appears to be a mermaid, the Straw Hats find themselves reunited aboard an escape vessel, but the fate of Luffy and the Franky Family is yet to be determined!

Luffy pushes his body to the breaking point in his battle with Lucci, and the rest of the Straw Hats try to fight off a fleet of Marines until their captain returns - if he ever does.

Luffy lies battered and badly beaten, but Usopp's desperate pleas inspire the rubber-man to mount one final, furious attack on Rob Lucci!

With their leader crippled by exhaustion and their escape ship destroyed, the Straw Hats find themselves with only one treacherous option: throwing themselves into the sea!

The Straw Hats are rescued by the unexpected arrival of a dear old friend, but they'll have to avoid a barrage of deadly cannonballs in order to survive!

The Straw Hats bid a tearful farewell to the brave little ship that was their home for so very many adventures. Rest in peace, Merry!

The Straw Hats get some much needed rest and relaxation, Franky makes a big announcement, and Vice Admiral Garp tracks down his grandson!

Luffy's friends are shocked to learn that his grandpa is a marine hero, but that's nothing compared to how surprised they'll be by his father's true identity!

Luffy gets the chance to catch up with his old friend Coby, Nami does some serious snooping, and Robin is paid a chilling visit from a terrifying face from her past.

Shanks visits Whitebeard with a serious request, Franky and Iceberg begin construction on a ship for the Straw Hats, and news spreads of the events at Enies Lobby.

Luffy and Chopper risk their lives to help a heartbroken young girl track down her long lost pet!

Zoro's day takes a turn for the crazy when his search for a new sword is derailed by a couple of meddling orphans!