Since the recent disappearance of 8 Man, a mysterious cyborg super hero created by Professor Tani, the city reels under "terrorist" assaults from murderous drug-crazed street gangs. Hazuma, an ex-cop who now runs his own detective agency, is hired to track down a missing scientist alleged to have made off with cybernetics from Professor Tani's laboratory. The missing hardware is reappearing as psycho-activated weapons grafted onto the bodies of the rogue "cyper-junkies." During his investigation Hazuma is brutally murdered. Dr. Tani uses Hazuma as a bio-template to replace the missing 8 Man. As a cover, 8 Man maintains the original persona of the detective, yet must cope with the duality of the cynical private eye and maintain the balance as an emotionless super-android hero.<br>
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(Source: Crunchyroll)

Episode 1 - City in Fear

Episode 2 - End Run

Episode 3 - Mr. Halloween

8 Man After