On August 1, 2019, the Asian colossus of television, film, videogame and animation productions Toei Company, a premiere by director Takashi Otsuka and producer Hiroki Koyama, the fourteenth installment of the One Piece saga, this time with an original story by screenwriter Atsuhiro Tomioka.
This production of adventure, fantasy and science fiction tells the story of a group of pirates who competed to obtain the hidden treasure of the Pirate King and thus achieve the highest reputation within the pirate community.
Delta Island will host Pirate Fest, where the most important pirate congregations will meet; if organizer Buena Festa expects no one to be missing; the first to arrive on the floating island are the Soja de Paja Pirates; all pretend to obtain the great treasure of Gol D. Roger, who is known as the Pirate King.
The best pirates are already present on the floating island, Buggy Pirates, Pirates Foxy, Barto Club Pirates and Beautiful Pirates; all start in the search for the hidden treasure, it is a struggle of all against all, whoever first gets the treasure will become the new Pirate King.
But the celebration really hides something else, it's not just for fun or finding a treasure, Festa hides something, has a secret plan with Douglas Bullet, a respected and legendary Pirate. But without realizing one of the guests, Trafalgar Law finds out about his plans, they quickly try to capture and silence him, but he cleverly manages to escape and reach the Straw Hat camp, where he talks with Thousand Sunny and tells him everything he knows.
Both decide to investigate what happens and intend to arrive at the truth about the plans of Festa and company; Brook, Chopper, Robin and Sanji, go out to investigate, while another group stays to watch; everyone manages to sneak into the Festa camp, and they discover that the Pirate Fest event is a farce, there is no such treasure, and the only purpose for everyone to be there is that it will be easier for them to eliminate them.
The Buggy seize the supposed treasure of the pirate King; while a powerful vessel takes them by surprise upstream, leading its huge canyons and mercilessly firing everyone on the floating island, forcing all pirates to go downstream to be able to save themselves from the brutal attack; meanwhile Douglas Bullet tries to flee with the true treasure of Gol D. Rogers.
The bullet is a powerful pirate almost impossible to defeat, everyone knows it and therefore they join forces to fight it, but it doesn't work and they end up losing everything with the indestructible Douglas. Law and his group are still in the hiding place of Festa and discover that soon more ships will arrive to end everyone present, so their mission now is to escape and forget about the treasure and fight Bullet.
But the reinforcements will soon arrive, Law and Smoker will run into the famous Warlord Crocodile, he has a plan to defeat Bullet, save all pirates and recover the King's treasure.