In 'Kill and Kill Again,' a martial artist is tasked with saving the world from a deranged scientist who wishes to achieve global domination. With his skills and determination, he faces numerous challenges including a martial arts tournament, kidnapping, and a dangerous helicopter chase. Along the way, he encounters a female martial artist and a father-daughter duo who join him in his mission to stop the mad scientist's plan.

In Kill or Be Killed, a skilled martial artist seeks revenge in a deadly tournament organized by a sadistic Nazi general. As he battles his way through the competition, he must confront his past and face the violent consequences of his actions.