Enter the Ninja is the story of a newly trained ninja who must immediately put his training to the test. Cole (Franco Nero) has just been recognized as a master by his ninja training school. He travels to the Philippines on business. There, a land baron and criminal, Charles Venarius (Christopher George), accosts him and tries to hire him to expand his business. Unfortunately for Venarius, his next prospect is actually the property of an old friend of Cole's. Cole recognizes his war buddy, Frank Landers (Alex Courtney), and turns down the job. Vernarius is enraged because he knows that there is a huge oil deposit beneath the land. He hires another ninja, Hasegawa (Sho Kosugi), to take on both Cole and his friend. Now the war is on, and only one ninja will survive the battle over the land. Enter the Ninja was so popular that it led to the sequel, Revenge of the Ninja.