The Instructor (1983)

Plot

A principled karate instructor grapples with his moral integrity after a rival martial arts school resorts to criminal activities and threatens his students and community. As tensions escalate, the widowed sensei must confront not only the physical challenges posed by the rival school but also the ethical dilemmas of standing up for what is right. His journey of defending his loved ones tests his resolve and commitment to the martial arts principles he holds dear, leading to a gripping showdown that will determine the safety of his students and the honor of his dojo.