Returning to his home after serving a prison term, Ma-Ryong gets angry because his wife became a whore. But he forgives her past and hands $100,000 which he got as a bonus from a secret mission he was to take, telling her to go to a remote place with his mother. In the meantime, Ma-Dae, a boss of Hong-Kong operating criminal organization, is negotiating with Sasaki in Japan for purchase of some firearms. Ma-Ryong is to execute this secret mission. With the Interpol's intervention, Ma-Ryong is to break up the Sasaki gang with Dae-Ho.

Plotting to obtain the Yen family's land, dastardly Japanese plutocrat Omura bribes Yen nephew Hsu Chien to steal the family seal and land deed. When Hsu Chien is caught in the act, he viciously beats elderly Master Yen to death to cover his actions. Determined to avenge the wrongs committed on his family and his country, young master Yen Tzu Fei blazes a knife-throwing path of revenge that leads him to his love Yue Hua's father, who has corrupt connections with the Japanese