Revenge of the Ninja (1983)

Virgil Frye, Arthur Roberts, Shô Kosugi, Kane Kosugi

After his family is killed in Japan by ninjas, Cho and his son Kane come to America to start a new life. He opens a doll shop but is unwittingly importing heroin in the dolls. When he finds out that his friend has betrayed him, Cho must prepare for the ultimate battle he has ever been involved in. ?