The Dematerialization Phenomenon, in which the real world becomes digital, has become a problem and must be resolved immediately. After hearing of this incident, Netto and Rockman left off after their father and Network Researcher, Yuuichirou. He also had found news of an invasion in the computer of the Trinity Brain trust company: 'The Earth itself will understand the way things stand in the cyber world'. In order to destroy the program causing the incident, Netto and Rockman have to go deep underground. But old enemies await them there, as well as new ones. As they fought each other, the vicious cyber-life, Nebula Grey, awakens. The Dematerialization Phenomenon will not be stopped unless Nebula Grey is defeated.
The year is 21XX. Reploids are commonplace now, after Dr. Cain rediscovered Dr. Light's old lab and based several designs off of Dr. Light's original, called "Mega Man X". X, meanwhile, has joined the Maverick Hunters, and works with unit leader Zero under the command of Commander Sigma. It is their job to terminate reploids who have become violent.
Acting as a prequel to Mega Man Maverick Hunter X, it follows Maverick Hunters led by Sigma to face a giant, rebellious mechalonoid. With X unwilling to hurt a hostage, Sigma takes the enemy on and berates X. Sigma later discusses X's potential for free will with Dr. Cain, something Sigma does not see power in. Meanwhile, X and Zero become suspicious about several maverick incidents occurring at the same time. It is revealed Sigma has hacked a massive maverick to distract the hunters as he frees several others including Vile. After disabling Zero, Sigma forces X to remove his weaponry and destroys Abel City, killing Dr. Cain in the process. X then remembers his early days in which Light, who was dying, told X how he gave him the power to develop his own mind and that he entrusts X to use power. X fights back, but only damages Sigma's head. Satisfied with this development, Sigma escapes to start his rebellion, leading to the game's beginning.
The live-action adaptation of the well-known video game.