The movie takes place in the year 2035, where most humans rely and trust robots to assist them in their daily lives. One of the very few sceptics is police detective Spooner, who has only prejudice against robots. The giant coorporation USR is about to commence a worldwide shipment of a new type of super advanced humanoid robot. Each robot is "three laws safe" meaning that it obeys Asimov's Three Laws of Robotics. Each robot also has an uplink to the giant central computer at USR. Short before the shipment day, Spooner is called on investigation to USR where the chief scientist has been found dead. The investigation leads Spooner to discover a robot plot which threatens the human race.