Enter the Ninja is a 1981 martial arts film directed by Menahem Golan and starring Franco Nero, Susan Georgeand Sho Kosugi. Production was started in the Philippines with Emmett Alston directing, but when Charles Bronson refused to allow Menahem Golan to direct Death Wish II, Golan, a co-principal of Cannon Group which was producing both movies, took over directing duties of Ninja replacing Alston.
The plot of the movie follows Angolan Bush War veteran Cole (Franco Nero), who after completing his training of ninjutsu within Japan as a Ninja, visits his war buddy Frank Landers (Alex Courtney) and his newlywed wife Mary Ann Landers (Susan George), who are the owners of a large piece of farming land in the Philippines. Cole soon finds that the Landers are being repeatedly harassed by a CEO named Charles Venarius (Christopher George) in order to get them to sell their property because, unbeknownst to them, a large oil deposit is located beneath their land. After beginning to thwart Venarius’ hired henchmen’s attempts to bully and coerce the Landers into the selling of their property to Venarius, Cole eventually finds himself facing an old rival from the days of his training – Hasegawa (Sho Kosugi), who was hired by Venarius as an assassin to eliminate Cole. In the midst of these events, an affair occurs between Cole and Mary one evening.