Revenge of the Ninja is a 1983 American action movie starring Sho Kosugi as Cho, a Japanese martial arts expert who moves to California to escape a from a clan of deadly ninjas only to find himself caught up in a heroin-smuggling operation orchestrated by an old friend. The movie also stars Arthur Roberts, Ashley Ferrare, and Kane Kosugi. It was the middle film in the Cannon Films "Ninja Trilogy," made between Enter the Ninja (1981) and Ninja III: The Domination (1984).
Cho's friend Braden (Roberts) is actually a member of the evil ninja clan that murdered most of Cho's family in Japan. Cho's son Kane (Kane Kosugi) is a witness when Braden murders Cho's mother. To catch Kane, Braden hypnotizes Cho's friend Kathy (Ferrare) and orders her to bring the boy to him.