Franchise timeline
Detonation Series
Toei's series of biker gang exploitation flicks.
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Part 1 · Sep 20, 1975
Detonation: Violent Riders
Wild-hearted mechanic boy Iwaki falls in love with the innocent but gang tied Michiko.
Part 2 · Jan 15, 1976
Detonation! Violent Games
Teruo Ishii's West Side Story, done as a bloody, violent, sexploitative biker gang film. It's the Red Chilis versus the Black Cats, and the chick who just may heal the divide.
Part 3 · Jul 1, 1976
The Runaway Season
The third movie in the "Boso" series.
Part 4 · Sep 15, 1976
Hell Riders
The fourth installment in the Bosozoku film series starring Koichi Iwaki.