Let’s see… Michael Rennie plays a cyborg. He is sent back in time by rebels to prevent a scientist from inventing a device that will have an impact upon the future by enslaving mankind. In turn, Rennie is being chased by agents from the future who are intent that he does not complete his mission. A woman in the present day begins to fall for Rennie. Sounds awful familiar to me. The music, as noted by the other comment, will have you rolling, it’s from Saturday morning cartoons, you’re almost expecting that Hanna-Barbera sound effect when someone starts running. Still, the movie has an above average cast for its low-budget, Michael Rennie, Karen Steele, Eduard Franz (the Jonathan Drake of “Four Skulls of Jonathan Drake”), Harry Carey, Jr., Warren Stevens (Forbidden Planet), Wendell Corey, and even future M*A*S*H star and Mrs. Chuck Woolery, Jo Ann Pflug can be glimpsed.