A kid who just wants to ride his bike gets dragged back into a war he never asked for because doing nothing makes him complicit. The real enemy isn't the alien invaders, it's the government that weaponizes a city's entire population and calls it defense. By the time you realize Shogo can't go home again, the show has already dismantled every comfortable lie you believed in the first OVA.

The Dezalg return with a terrible new weapon and turn it against the defenses of Megazone 23. B.D. believes new weaponry is the only way to survive, so he keeps trying to break through EVE's last layer of protection, since full control of the Megazone would let weapons development go unchecked. Shogo has tried to settle back into ordinary life with his girlfriend Yui and his biker gang, Trash, but he still objects to the shadow government that runs the Megazone. When EVE asks for his help, he finds where the Garland bike has been hidden. Shogo faces B.D., Trash clashes with the military, and the Dezalg bear down on Megazone 23. Meanwhile EVE's last secret, A.D.A.M., could mean that nobody survives. This single-episode OVA blends mecha action, science fiction, mystery and romance.