The Dezalg have returned with a new, horrible weapon and unleashed it on Megazone 23's defences. Believing their salvation is also in new weapons, B.D. is still bent on breaking EVE's final protection level. Full control of Megazone 23 would mean unfettered weapons development.

Shogo, meanwhile, has tried to return to a normal life — hanging out with his biker gang, Trash and his girlfriend, Yui. But, his convictions about the Megazone's shadow government policies have not changed and when EVE calls for his help, he discovers where the Garland bike has been hidden.

It is showdown time for Shogo and B.D., Trash and the military, as well as the Dezalg and Megazone. However, EVE's final secret, A.D.A.M., may mean no one will survive.