The Straw Hats have arrived at a volcanic island that does not show on the New World Log Pose. Luffy in his enthusiasm votes to go to the island, though most of the crew were reluctant to go because of the sea of fire blocking their way.
Luffy, Zoro, Usopp, and Robin are standing near the dead dragon that Zoro killed and Luffy is trying to pull out the man who is stuck in the dragon's body.
Chopper and Nami, leading the children stumble upon a room with people frozen in it. Franky, Sanji and the samurai start to make their way towards Nami and Chopper. Luffy, Zoro, Usopp and Robin get attacked by the centaurs.
Luffy, Zoro, Usopp and Robin try to get to the ice side of Punk Hazard but their ship gets capsized by Brownbeard. As Brownbeard's troop prepares attack them again, Zoro gets ready to destroy their bullets but gets dragged down by sharks.
Law was going to to cut up Tashigi into little pieces but Smoker saved her and started fighting against Law. Luffy, Zoro, Robin and Usopp are riding on top of Brownbeard after defeating him and his centaurs.
Tashigi tries to see what happened in the fight. Luffy's group sees the flying warship. Luffy sees Law and thanks him for saving him two years ago. Law says that they aren't friends and Luffy agrees since they were both after One Piece.
The G-5 Marines discussed if Caesar Clown was probably behind the unusual events at the island and that the child abduction cases in that area may have been real.
Featured characters of One Piece, Toriko, and Dragon Ball Z enter the IGO tournament in order to gain the Carat meat, which is said to be the most tasteful in the world. However, it leads in a tie between Goku, Toriko, and Luffy.
The children and the Straw Hat Pirates are in a cave with Brownbeard tied up talking about the Master. Zoro, Sanji and Brook go to look for Kin'emon, who had gone to look for his torso.
Yeti Cool Brothers make their way to the destroyed lab where the Straw Hats and the children are. Monet tells Caesar Clown about Law having some relation to Luffy, which makes Caesar mistrust Law until Law reassures him.
Chopper tells the others that Nami in Franky's body was kidnapped by the Yeti Cool Brothers. Franky in Chopper's body takes a Rumble Ball. Luffy and Franky go after the Yeti Cool Brothers to save Nami and defeat them.
Luffy and Law agree on an alliance; the rest of the Straw Hat Pirates disapprove while Nico Robin approves, even if she warns Luffy about a possible betrayal in a pirate alliance.
Zoro, Sanji and Brook are trying to find the samurai and remember what happened to them. They had been knocked out by the Yeti Cool Brothers, who used a gas that makes people drunk.
Sanji, Kin'emon, Brook and Zoro see Smiley. Brook talks about a story of a creature called Slime which melts the clothes of women, making everyone act perverted except for Zoro, who points out that the slime is killing the fish in the lake.
As Luffy and Law remain captives in Caesar's lab along with the others who were captured, Caesar Clown goes to retrieve the children from the remaining Straw Hat Pirates.
As the Underworld Brokers watch the video feed of the captive Straw Hats and Marines, Eustass Kid and Killer decided to ignore it for more important matters, such as forming alliances.
Chopper uses Monster Point, trying to prevent the children from taking more candy. Luffy faces Monet and gets trapped but manages to make a hole in the floor and escape.
Smoker and Vergo begin their fight in the SAD Room. At the same time, Sanji, Tashigi, and the G-5 Marines are running through the battle-torn B-block when a gas tank explodes, causing Shinokuni to get in.
Luffy meets Momonosuke in the garbage dump of Block C. In a flashback, Momonosuke didn't want the candy Caesar gave out to the children and he got hungry so he ate a devil fruit which turned him into a dragon.
Luffy and Momonosuke are still trying to get out of the garbage chute. Caesar is watching Monet fighting Zoro. Usopp, Brook and Kin'emon are trying to find the sea stone cuffs and Momonosuke.
Mocha is still running away with the candy, and the children are chasing her. Chopper, Nami, and Robin come to her and the children's aid. At the Biscuit Room, Zoro and Tashigi battle Monet.
Luffy and Momonosuke manage to escape from the garbage chute and attack Caesar's subordinates, asking them where Caesar is. Mocha sacrifices herself and eats the candy.
Smoker continues his fight with Vergo. The Straw Hat Pirates, G-5 Marines and the children run from the gas and continue to head towards building R-66. Usopp stumbles over the surveillance room where some of Caesar's men open fire at him.
Luffy defeats Caesar and sends him flying out of the facility. The Straw Hats, G-5, the children and Law made it to Building R-66 where they prepare to leave the building. Baby 5 and Buffalo attempt to rescue Caesar.
The Straw Hats are still racing towards the exit of the collapsing lab when they felt the explosion of the SAD room and then saw Shinokuni on their trail.
General Franky puts up a good fight against Buffalo and Baby 5. He sends them flying away with a General Cannon, but the two refused to stay defeated despite their injuries.
The Straw Hats and G-5 Marines part ways. Flying over the ocean, Doflamingo approaches a life raft with Baby 5 and Buffalo's heads hanging on it, which were apparently cut off by Law.
Caesar Clown's former minions go in a search for those who were petrified by Shinokuni. All a sudden, Doflamingo appears and kills majority of the G-5 Soldiers.
Doflamingo prepares to finish Smoker off, but is stopped by Kuzan's ice. At the Thousand Sunny, Law tells some details about the recently formed pirate alliance.
Smooth seas stretch out before the Straw Hats as they leave Punk Hazard far behind - but while they fear Doflamingo's return and prepare to face him, another foe lies in wait, whose powers could be their downfall.