The Dezalg have returned, armed with a terrifying new weapon that devastates Megazone 23's defenses. Convinced that their salvation lies in developing more advanced armaments, B.D. remains determined to crack EVE's final security layer—gaining full control of Megazone 23 would grant unlimited weapons development.
Meanwhile, Shogo attempts to resume a normal life, spending time with his biker gang, Trash, and his girlfriend, Yui. However, his convictions about the shadow government's policies within Megazone remain unshaken, and when EVE calls for his aid, he uncovers the hidden location of the Garland bike.
A confrontation looms between Shogo and B.D., Trash and the military, and the Dezalg and Megazone itself. Yet EVE's ultimate secret, A.D.A.M., may spell doom for all involved.