Tired of the authorities' ability to deal with a family of mobsters, a martial artist creates his own gang to fight back.

The Yellow Tiger, a traditional family mob, begin to claw their way to leadership of the underworld through their ruthless handling of rival gangs. The violence spills onto the streets, where the law's failure to wipe it out enrages Song, an expert in unarmed combat. Song organizes his own gang, to counterattack and destroy the Tiger's project.