The notorious bandit, Shi Wen Lung breaks out of a California jail and flees back to China to carry on his life of crime. Eventually the Country sheriff catches up with him looking for the bounty on his head.
When a once infamous criminal decides to give up his lifestyle and return the many treasures he has stolen to their rightful owners; he is promptly murdered by his partners in crime. To avenge his death is his son, with the deadly "mantis fist".