Luffy and company come across a mysterious pirate ship after trying to escape a giant wave. Soon, they arrive on an island inhabited by strange animals. Going Merry is captured by the Foxy Pirate crew.

After Tonjit re-unites with his horse, they are soon attacked by Captain Foxy and his subordinates, who challenge Luffy in a Davy Back Fight, a contest of pirates where the stakes are members of the crew.

The first round of Davy Back Fight involves a race around the island with tiny boats. Zoro's and Chopper's boat is eliminated.

With only Luffy, Nami, and Porche's boat remaining, it's an all out war to the goal, but after Foxy exposes his Devil Fruit powers, Porche wins and takes Tony Tony Chopper from Luffy. The second round prepares to start.

Without Chopper, Sanji and Zoro must face the Foxy Pirates in a ball game, but are hampered by their blatant cheating and the crooked referee.

The bickering rivals Sanji and Zoro manage to overcome the opposing team by working together. Luffy chooses Tonjit's horse, Shelly over Chopper.

The Straw Hats face Foxy a race around a giant ring on roller skates.

Thanks to to some quick planning, the Straw Hats win the race.

With Luffy's victory, he takes Chopper back, but foolishly accepts another challenge by Foxy.

Foxy decides to take Robin from Luffy this time because of her Devil Fruit ability. The next match is a race to the top of the island.

With Chopper gone again from Luffy's crew, Luffy and Foxy face off in the final game: a battle of brawn aboard Foxy's ship.

Luffy continues to battle Foxy with the odds not in his favor, and the fight continues inside Foxy's ship.

Luffy manages to finally defeat Foxy by using his ability against him. After dismissing his new crewmembers, the Straw Hats leave in search for a shipwright.

A mysterious figure appears during the night and steals the memories of the crew. In the morning, Robin is the only one who remembers the Straw Hats adventures together. Her attempts to keep the crew together fail as Nami and Zoro go separate ways.

Robin suggests that only those who were sleeping lost their memories. Luffy and the others then remember seeing the mysterious boy who played some kind of flute. Later that night, they discover the boy outside and Luffy tries to fight him. At the last second, he proclaims his memory has returned.

During the night, Usopp, Chopper, and Sanji question what brought them to the Going Merry. In the morning, Usopp builds them a raft and they sail to the island where they meet Nami again. Meanwhile, the boy sets his sights on Zoro.

On their way to "The Palace of the Sea God" Robin's group meets an entranced Zoro. It looks like Zoro wants to fight so Luffy urges the others to keep going without him. They apprehend the kid but the whistle was what was really stealing their memories. Zoro returns, still entranced, but Luffy's nowhere to be seen.

Luffy returns and knocks some sense into Zoro. Cornered, the sea horse spreads illusions of the people in their memories to distract them. It steals their complete memories and claims that it has become a Sennenryu. Luffy defeats it and returns all the memories but the townspeople are convinced they are the memory stealers.

Luffy rescues Foxy, Hamburg, and Porche from a storm at sea. When they reunite with the Sexy Foxy ship, they find it captained by somebody new. Foxy accepts a Davy Back Fight in order to regain his ship and crew. Donning the afro once again, Luffy vows to defeat the captain.

Once Foxy wins back his crew, he captures the Straw Hats. Nami and Luffy fight Foxy and although he's defeated, his crew accepts him back. Later, they sail to an island where they meet someone Robin knows: a Marine named Aokiji.

The man they met, Marine High Admiral Aokiji, appears to be incredibly lazy. He first displays his Devil's Fruit ability by freezing the sea so some deserted people can get off the island. Unfortunately, he's determined to catch Robin. Luffy, Sanji, and Zoro attack but they seem to be no match.

Robin is frozen by Aokiji and Luffy tells the others to escape with her. In the Going Merry, Usopp and Chopper try to thaw her in the shower. Luffy gets defeated (frozen), but his life is spared as Aokiji believes he must repay the debt the marines incurred from Crocodile's defeat at Luffy's hands. With the crew defrosted, they continue sailing as usual. Zoro spots the giant frog they heard about and they chase it to an island with a lighthouse, but it appears they'll sink before they get there.

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!

Sanji spends the day with a very old chef who teaches him the secret of packing amazing flavor into each and every dish!

Franky and Iceberg stay up all night on a mission to finish a new ship for the Straw Hats, but the first light of day brings troubling news!

With their new ship completed, Luffy and the gang get ready to set sail, but first they'll have to steal some underpants in order to secure the services of a shipwright!

A series of flashbacks to his younger days - and some painful persuasion by Robin - help Franky make the difficult decision to leave his friends and go to sea with the Straw Hats!

Luffy and the Straw Hats are ready for their next adventure, but before they can move on they must await the return of Usopp - and avoid a barrage of cannon balls courtesy of Garp!

The Straw Hats' new ship gets a name, and Franky shows off some of its special features as the gang goes sky high to avoid being sunk by the marines!

Ace and Blackbeard go toe-to-toe in an epic clash of Devil Fruit powers that pits fire against darkness - and threatens to destroy an entire island!