In order to fight back, many heroes are recruited to join the "Jump Force" under the leadership of Director Glover and his A.I. partner Navigator. But a suspicious figure is using both the Jump Force and the Venoms as an attempt to gain a mysterious artifact and merge all worlds into one. Frieza attacks...
In order to fight back, many heroes are recruited to join the "Jump Force" under the leadership of Director Glover and his A.I. partner Navigator. But a suspicious figure is using both the Jump Force and the Venoms as an attempt to gain a mysterious artifact and merge all worlds into one. Frieza attacks New York City with an army of Venoms, being confronted by Son Goku; however, a stray laser blast from Frieza fatally wounds a civilian in the war zone. Glover explains that the manga worlds from "Jump" have somehow begun merging with the real world and using their own umbras cubes to turn evil-hearted humans into Venoms, forcing him to create the Jump Force to quell the threat; the organization consists of heroes from the "Jump" worlds, along with other people saved through the cubes. The group is divided into Alpha, Beta and Gamma teams; Son Goku leads Alpha to fight off the invading Venoms, Luffy leads Beta to reclaim the territory from the Venoms, while Naruto leads Gamma for stealthy reconnaissance. The new hero, who serves as the game's player character, is asked to join one of the divisions to help repel the invasion.Light Yagami, whose Death Note lost its powers by the merging of worlds has also joined, secretly intends of restoring it. The Jump Force discover other heroes being mind-controlled by umbras cubes charged with evil energy. Duplicates of the Jump villains made of the dark umbras cubes also appear, along with the real ones, adding to the confusion. After an amnesiac girl named Angela is rescued, several members of the Jump Force suddenly become possessed by evil auras during missions, leading them to suspect a traitor is among them. She steals the collected umbras cubes and gives them to her master Kane, a man seeking to wipe out humanity in revenge for the deaths of his family. The player pursues and defeats Kane, but Glover reveals himself as Prometheus, the true mastermind behind the merging of the worlds and Galena's true master, having used Kane to sow chaos across the worlds. The heroes defeat Galena, only for Prometheus to absorb her afterward. The heroes confront Prometheus, who reveals himself to be a "keyman" charged with showing the real world the stories of "Jump", but grew tired of humanity's vices and attempts to merge the real and the Jump worlds together in order to guide humanity in the right direction. He steals the player's cube for its good energy, planning to use it to balance the evil energy he collected from the villains to become a god. The villains form a temporary truce with the heroes, while a still-alive Kane uses the last of his strength to give his cube to the player and Goku empowers them further with the energy from all of the Jump Force, allowing them to destroy Prometheus. However, Prometheus's death does not separate the realities, leaving Earth still under threat from the Jump villains.