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

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.

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!

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!

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!

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!

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!

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!

The captain of the Phoenix Pirates loses his will to fight, and the Straw Hats get trapped in a field of icebergs by some figure skating bounty hunters!

Luffy and Doflamingo duke it out while the Birdcage tightens its grip on Dressrosa! Zoro sets off with a plan to stop it from slicing apart the country, while Luffy's Fourth Gear proves quite potent against Doflamingo!

Luffy, Zoro and Kiku chased after Gazelleman, riding on Komachiyo but they failed to catch up as he was too fast for them. He arrived in Holdem's residence in Bakura Town, the town where Orochi's officials and men of Kaido lives. He hands Tama over to Holdem, one of three headliners ruling over Bakura Town. Luffy's group arrived at the entrance of the town but were stop by the guards. Bepo, Sachi and Penguin saw them using a binocular from a nearby hilltop, and they ran to find Law, who was chilling in an abandoned building, and informed him that Luffy had appeared at the entrance of Bakura Town.

Dogstorm clashes with Shutenmaru, who refuses to aid in Kin'emon's operation. Sanji and the others seek out recruits.

Luffy continues training himself to use Haki with Old Man Hyo’s help, but the battle is suddenly suspended and shortly thereafter Raizo appears in front of them. Meanwhile, Nami, Usopp, and the others are wondering who Tonoyasu, Ebisu Town’s hero, really is .

Big Mom subdues Queen when the latter tries to fight her. During that scuffle, Kid and Killer are saved from drowning. Big Mom does not find any oshiruko, and when Luffy blurts out that he ate it, she attacks him out of rage. Luffy and Hyogoro are forced out of the ring, but Luffy manages to remove the collars before they are killed. Afterwards, Hyogoro decides to test Luffy by having him defend against Big Mom's attack.

Orochi plots to take the shogunate with Higurashi's assistance. As Oden continues his journey with the Whitebeard Pirates, he finally encounters the Roger Pirates. A clash between Edward Newgate and Gol D. Roger ensues.

As Kin’emon and the others run to Oden Castle to save Oden’s family, the castle is set on fire and Kaido attacks Toki and her children. Leaving Momonosuke to Kin’emon and Hiyori to Kawamatsu, Toki appears in front of the desperate people of the Land of Wano and gives a prophecy.

Luffy and Zoro each witness Kaido’s subordinates waste food at the banquet and make fun of the poor people in the Land of Wano. Thinking of Otama, a small girl who liked red-bean soup so much, both Luffy and Zoro become infuriated and create turmoil.

The Akazaya members deliver a crushing blow to Kaido. Luffy and Yamato try to back them up, but Ulti stands in their way and Big Mom spots Luffy. Meanwhile, Nami and Carrot free themselves from their enemies and move on to take back Zeus!

Zoro and Drake continue to chase Apoo to get the antibody against Ice Oni, while Chopper is trying to figure out how to fight the virus. In the castle, Luffy, Jimbei, and Sanji are climbing up the stairs to reach the rooftop where the Akazaya members’ tough battle against Kaido rages on.

Sanji is captured and tortured by the merciless Black Maria. She names the terms of his release: to turn over one of his crewmates. He hesitates but has no other option. After much distress, he makes a move that surprises everyone.

Luffy remembers how he was advised by his friends, how he was saved by his comrades, and the frustrations of being defeated. As Kaido mocks him to his face, the Color of the Supreme King Haki gushes out and they clash again.

Nami strikes a thunder blast to clear the way to the stage on the Performance Floor. However, the elite corps of the Gifters shows up to crush their inferior opponents. Upset but unbroken, Otama stands up to give a command!

Dogstorm confronts his sworn enemy who destroyed his country. Meanwhile, Cat Viper faces Perospero who is responsible for Pedro’s death. At Tokage Port, Momonosuke roars with his determined eyes.

Sanji still wonders what is happening to his body as he receives attacks. Meanwhile, the dying Kin’emon hears an unexpected voice calling for the also dying Kanjuro. Through the Smail, the voice of Orochi tries to stir up Kanjuro to make him perform one last time.

In the Flower Capital, the Fire Festival is about to end. On Onigashima, the battle between Luffy and Kaido is getting even more intense. However, Kaido who is excited about having a strong opponent starts drinking too much.

Momonosuke struggles to create Flame Clouds to sustain Onigashima which is in free fall. In the Flower Capital, the Fire Festival is ending with people flying their Sky Boats in the air. To fulfill the promise to free the Land of Wano, Luffy inflates his fist to strike Kaido.

Momonosuke and Hiyori are happy to see their grandfather who was supposed to be dead and the Straw Hats are surprised when Robin tells them about Pluton the Ancient Weapon. Meanwhile, Momonosuke is kept busy in his role as the new Shogun.

The Blackbeard Pirates ambushed the Heart Pirates led by Law. The Blackbeard Pirates’ top officers use a variety of formidable Devil Fruit powers and keep pushing the Heart Pirates in order to obtain the copies of the Road Ponegliffs.

CP-0 enters the Labophase and starts attacking the Thousand Sunny as soon as they find it. Luffy reunites with Nami and the others but finds out that Vegapunk is missing. Meanwhile, Bonney is pressing Vegapunk to change back her father Kuma.