Ruthless mobsters and vengeful karate masters battle it out in this action-packed double feature. In Hong Kong Karate Hatchet Men, a mob boss seeks revenge against a group of thugs who defected to form their own gang. Chio Fung, Helen Yick and Chung Shun star. In The Chang Gang, a team of martial arts masters escape prison and seek vengeance on the villains responsible for their incarceration. Bobby Rojo, George Louis and Bert Si Yu star.