Arsenals of round kicks and backfist strikes explode in this stunning tale of intrigue between two gangs. Each opposing group is hopelessly divided on the issue of refugees filtering into their territories. Each gang, crisscrossing through the light and shadows on both sides of the law, succeed in having each other's clubs raided. Finally, devastating fists and razor-edged weaponry collide in spectacular warfare between the two gangs. Starring the incomparable Bruce Lee [sic], in one of the most violent and vengeful roles of his career.

John Liu, the legendary Northern Kick expert and master of the strike rock fist is sent to investigate an antiques smuggling gang working out of Canton. Meanwhile another descendant of the stike rock fist also seeks John to face him in a death duel.

Bruce Lee has just died, but the BSI is swinging into action to salvage the situation. Aided by the brilliant Professor Lucas, cells from the martial arts master's body are removed and grown into three adult Bruce Lee clones. After undergoing training to bring their skills up to the level of their 'father', the three are sent out to battle crime, with one sent to take on a gold smuggler, and the other two teaming up to shut down an evil mad scientist.