"In 2035, this is the era of machines!" This does not only refer to those already highly developed mechanized mass production, full of mature technology of daily necessities and household appliances, as a slogan of robotics companies, it is more to show that those who have already Intelligent robots that penetrate into human life. As the best production tool and human partner, robots have begun to play an increasingly important role in various fields, and due to the well-known three laws of robots, humans are full of trust in these partners who are capable of various tasks and have no complaints. Many of them have even become part of a family. Chicago detective Dale Spooner () has always been suspicious of robots. He does not believe that humans and robots can coexist in harmony. This doubt is finally confirmed by a murder incident: the head of the American Robotics Research Center. The engineer Dr. Alfred Lanning was killed, and the suspect included an advanced NS-5 robot he developed. The superior sent Dell to investigate the case. After careful investigation and analysis, he found that the person in charge of the Robotics Research Center was acting suspiciously, and the secret leaked from the Research Center was even more shocking: it seems that some robots have begun to be out of control. The Robotics Research Center designed a control program for the NS-5 advanced robot, but with the continuous improvement of the robot's computing power, they have learned to think independently and solved the control code by themselves. They are already a completely independent group. The coexistent high-IQ mechanical groups of human beings will also transform into the "mechanical enemies" of the entire mankind at any time. Dell must catch up before the robot action find out the truth of the matter, for which he became acquainted with specialized robot psychology of female scientist Susan Kaier Wen (ornaments), they want to initiate action against the robot together At the same time, they have to deal with unexpected dangers.