Wild 7

Wild 7 (ワイルド7, Wairudo Sebun) is a manga series by creator Mikiya Mochizuki that debuted on 1969 on Weekly Shōnen King where it ran until 1979. It has been adapted into a live action series, an OVA and a spin-off anime. A live action film adaptation premiered in Japan on December 21, 2011.

Plot
In the wake of rising criminality and terrorist activities in Japan against Japanese nationals, the Japanese National Police Agency has no choice but to authorize the mobilization of a special Counter-terrorist Motorcycle unit consisting of reformed convicts, ranging from simple thugs, individuals forced into prison for simple petty trouble and former Yakuza henchmen and leaders to combat armed criminals and terrorists.