To combat rising crime and terrorist activities in Japan, the Japanese National Police Agency authorizes the formation of a secret motorcycle unit known as the Wild 7. The motley group consists of reformed convicts - ranging from simple thugs to former Yakuza members. The Wild 7 are tasked to take out criminals the police cannot touch - due to the criminal's connections with politicians and wily lawyers.

Set five years after first film "Eight Ranger". A new threat appears for Eight City and its protectors Eight Ranger.