The Master (1984)

John Peter Macallister, was a Korean veteran who after serving, decided to live in Japan, and while there, he studied Ninjitsu and became a Ninja. 30 years later he learned that he has a daughter, so left, to find her. But apparently, he can't leave the sect that he is with, cause it means that he is now marked for death. He manages to escape and upon arriving in the States, he meets Max Keller, a drifter who has a penchant for getting involved with other people's problems and helping them out if he can. Max and Macallister hook up with Max helping him find his daughter, and Macallister teaching him the ways of the ninja. At the same evading Okasa, one of Macallister's students who is now sworn to kill him.