Detroit is a world-famous automobile city, where the mechanical industry has reached a superb level. Murphy (Peter Weller) is an ordinary policeman in Detroit, with neither extraordinary skills nor superb technology. Once, he was beaten to death by a group of thugs while on a mission, and his life trajectory has changed since then. Scientists in Detroit failed to save his body, but they were able to perfectly combine his mind and machinery into one. Murphy became a mechanical policeman with a human mind and a mechanical body! Equipped with various weapons and able to cope with various violent activities, Murphy became the trump card of the Detroit police. However, after Murphy's accident, his family mysteriously disappeared. While Murphy was fighting crime, he was trying his best to find his family. Surprisingly, Murphy's mechanical body is controlled by a group of interest groups. They have been using Murphy to do all kinds of evil deeds...