Revenge of the Ninja main subject ninja
Revenge of the Ninja  is a 1983 American martial arts–thriller film directed by Sam Firstenberg, and starring martial artist Sho Kosugi, Keith Vitali, Virgil Frye and Kane Kosugi. The plot follows a ninja trying to protect his only son from a cabal of ruthless gangsters.
It is the second installment in Cannon Films' "Ninja Trilogy" anthology series, starting with Enter the Ninja (1981) and ending with Ninja III: The Domination (1984). It was very successful at the box office, despite receiving mixed reviews from critics.