Revenge of the Ninja

Revenge of the Ninja is a 1983 martial artsactionthriller film starring martial artist and cult actor Sho Kosugi as a ninja trying to protect his only son from a cabal of ruthless gangsters. It is the second entry in Cannon Filmss unofficial ninja trilogy, starting with Enter the Ninja 1981 and ending with Ninja III The Domination 1984, though none of the films have any connection to one another besides the presence of ninjas and actor Kosugi appearing in different roles. It was directed by Sam Firstenberg and also stars Keith Vitali, Virgil Frye, and lead Sho Kosugis son, Kane Kosugi.

One night, Kane accidentally drops and breaks open one of the dolls, exposing a white dust heroin contained therein. As it turns out, Braden uses the doll gallery as a front for his drugdealing business. He tries to strike a deal with Chifano Mario Gallo, a mob boss, but Chifano and Braden cannot find common ground and eventually engage in a turf war. Braden, as a silver demonmasked ninja, assassinates Chifanos informers and relatives to make him cower down. The police are confused about the killings, and local police martial arts trainer and expert, Dave Hatcher Keith Vitali, is assigned to find a consultant. Dave persuades Cho to see his boss and Cho attests that only a ninja could commit these crimes, but refuses to aid the police any further.In order to avoid payment for his merchandise, Chifano sends three men to clear the gallery. Cho happens to walk into the gallery while the thugs are loading the goods in a van, is attacked and responds with handtohand combat. The henchmen escape in the van with Cho in pursuit, but he fails to stop the thieves from getting away. Meanwhile, Braden stealthily arrives to Chos art gallery to find that it was just looted. Chos mother and Kane both encounter him Braden kills Chos mother, but Kane manages to elude him. Cho, badly mangled, returns to find his mother murdered and his son missing. ........

Source: Wikipedia