The UnderNet isn't just a digital space, it's a graveyard where even the strongest programs can be dragged back into existence against their will. Forte wakes up powerless, something that should never happen to him, and that single violation of the natural order tells you everything about what's coming. This movie understands that in the Rockman.EXE universe, the real horror isn't losing a battle, it's losing control of your own nature, your own code.
Deep in the UnderNet, a pulsing power wakes Forte from his drifting sleep, and a huge purple mass with a laughing face seizes him before he can fight back. Near sunset in a quiet city, a shimmering purple light swells into a pillar that rises into the sky, swallowing everything in its path as people scream. When it fades, only cybernetic residue and emptiness remain. This Dematerialization Phenomenon, in which the real world turns digital, must be stopped at once. Netto and Rockman follow the trail of Netto's father, network researcher Yuuichirou, who has also learned of an intrusion into the computers of the Trinity Brain trust. To destroy the program behind the incident, the pair must travel deep underground, where old enemies and new ones are waiting. Amid their clashes, the vicious cyber-life Nebula Grey awakens, and the phenomenon cannot end unless it is defeated.
