After being defeated by Pekoms, Caribou starts to kidnap mermaids again until Jinbe subdues him. Jinbe then departs Fish-Man Island with him and takes him to the G-5 Marine base. After the Caribou Pirates attack the base, Caribou escapes and leaves his crew behind. During a storm, he ends up on an island where he is nursed back to health by a granny. He is also mistaken for a revolutionary named Gaburu. After reuniting with his crew again, Caribou assumes Gaburu's mantle and leads the citizens in a revolution against Scotch. After emerging victorious, however, Caribou is defeated and taken away by X Drake.
Long Summary
During another peaceful day at Mermaid Cove, a scream is heard as a shadowy figure chases after two others. The figure is then revealed to be Caribou, who after recovering from his defeat at the hands of Pekoms, began another mermaid kidnapping spree. However, Jinbe arrives and easily defeats him with his Fish-Man Karate. Jinbe then chains him up in a barrel and prepares to deliver him to the Marines on a coated boat, waving goodbye to the inhabitants while Caribou fumes at being defeated again. As they are traveling to the surface, Caribou's younger brother, Coribou suddenly arrives with the rest of the Caribou Pirates on a newly built Numabou to rescue his brother from Jimbe, making Caribou elated. However, Jinbe gets out uses his superior swimming skills to quickly flee from them while hanging on the boat with Caribou still inside.
They then make it to the surface, right next to the dilapidated G-5 Marine base, where Jinbe drops the surprised Caribou off. Caribou was then found by the vicious marines of G-5 led by CommodoreYarisugi, who planned to torture the pirate in several grueling ways, thus frightening him. They then decide to burn him on the stake, but just then, the Caribou Pirates arrive to save their captain, with Caribou himself loudly demanding that they hurry up already. The pirates begin fighting the marines, with Coribou landing a blow on Yarisugi with his shovel. He then uses it to chop down the stake Caribou was on before he could start roasting over the fire, allowing him to escape. Despite saving his brother, however, Coribou was then subdued by the commodore while the rest of the crew was beaten, and was then shocked to see their ungrateful captain taking off in their ship without them, leaving them all at the mercy of the despicable G-5 marines. But then afterwards, the ship was later wrecked in a storm, which Caribou believes is God's wrath for leaving his brother and men behind, and he is forced to escape the sinking ship on a small row boat.
Caribou barely survives the storm and ends up on a winter-island with metal trees and rocks, and at some point falls unconscious. He then wakes up to find himself in bed within the home of a sleeping old woman, who had apparently carried him inside and cared for him. Ever the evil pirate, Caribou then gets out of bed without waking the woman and helps himself to her meat-pie and jewelry. The woman then wakes up and apparently forgives Caribou for trying to rob her, gives him a coat and a lunchbox full of meat-pies and directs him towards the island harbor, making Caribou very confused. On his way to the harbor, Caribou runs into some armed soldiers who mistake him for someone named "Commander Gaburu". However, the old woman appears and chases the men away by pelting rocks at them. With the men gone, Caribou continues his way to the harbor while waving goodbye to the woman, who waves goodbye back.
Before getting there, he goes back out of curiosity only to find the men from earlier still feverishly looking for him. While stealthily looking around, he stumbles upon a weapons factory. After leaving the factory, he sees a gathering of the soldiers showing a banner of their revolutionary leader Commander Gaburu, who bears an uncanny resemblance to Caribou, which explains why the soldiers believed he is their lost commander. After the soldiers begin to revolt, the revolution is put down by Kaido's subordinate Scotch as Caribou watches in terror. After defeating the revolutionaries, Scotch looks down on them.
Caribou then enters the old lady's house and is horrified to see her lying on the ground, surrounded by fire. He looks at the picture laying next to her. He sees that in the picture, Gaburu is eating a meat pie made by the old woman, and the picture is titled "I love grandson Gaburu" revealing that Gaburu is now dead and was the grandson of the old woman. She soon wakes up and tries to prevent Caribou from fighting, begging him to run away as she too believes the pirate to be her grandson. Her house is then broken into by Scotch who wastes no time in attacking her, greatly shocking Caribou.
The old woman, still thinking Caribou was Gaburu, steps in between Scotch and Caribou, preparing to fight Scotch. Caribou then uses this opportunity to escape Scotch. Once Caribou escapes from Scotch, he runs into his brother Coribou and his crew mates, who have escaped from the G-5 Marines with a stolen Marine ship. Caribou and Coribou quickly reconcile due to their now deceased grandmother telling them to always stick together. Meanwhile, Scotch captures Gaburu's grandmother and is about to execute her as an example. He is interrupted when a Marine ship is seen arriving in the distance.
On the ship are none other than Caribou and his crew, with the former posing as Commander Gaburu. Once back on ground, they waste no time engaging Scotch and his men in battle while simultaneously freeing the workers and Gaburu's grandmother. Caribou appears to quickly gain an advantage against Scotch, choking him with his Devil Fruit powers. After defeating Scotch, Caribou proceeds to destroy the factory, bringing it crashing down. They all then celebrate their victory, but then a dinosaur suddenly appears and knocks the brothers off their platform. The titanic lizard soon turns back into X Drake and drags Caribou off to parts unknown. Gaburu's grandmother, greatly saddened, gives her "grandson" one last pie.
Drake takes Caribou on a ship and sails out to sea, as the revolutionaries, the old woman, and Caribou's crew bid them farewell. Not long after, Gaburu's grandmother visits the grave of the real revolutionary commander and reveals that she knew the whole time who Caribou really was, much to the shock of Coribou and the rest of Caribou's crew.
