After discovering that demonic hordes threaten Japan, the cyborgs led by Dr. Gilmore encounter Devilman, a powerful demon who appears to be an ally of Black Ghost, an evil terrorist organization.

After discovering the existence of demons in Tokyo, the original 00 Cyborg crew led by Dr. Gilmore find themselves in conflict with Devilman, a strong demon believed to be in league with the war-profiteering terrorist organization, Black Ghost. Meanwhile, a bigger threat emerges when Dr. Adams, a Black Ghost scientist unleashes his new line of high-teen 00 Cyborg models against 009 and his friends...

After discovering that demonic hordes threaten Japan, the cyborgs led by Dr. Gilmore encounter Devilman, a powerful demon who appears to be an ally of Black Ghost, an evil terrorist organization.