Jiang Xiaoqi, a medical female doctor who returned from Harvard Medical School in the United States, was robbed when she was shopping. In the chase, the kidnapped child awl accidentally fainted to the ground. She sent the awl to the emergency department of Yanjing University International Hospital. Branch. In the hospital, she saw He Jianyi, the deputy director of the emergency department, and the two men had a disagreement because of a treatment plan for a wrist amputation. Liu Huimin, another deputy director of the emergency department, has two apostles - Sun Meng and Qiao Na. Sun Meng is very hard-working and has won Liu Huimin's love. Jona told Liu Huimin that He Jianyi will be appointed as the administrative director of the emergency department. Liu Huimin reprimanded Jona for his thoughts. In the emergency department, an acute intestinal perforation pregnant woman was sent. He Jianyi and the obstetrics and gynecology combined operation, the mother and child were safe. A mentally ill person caused mental disorder due to the death of his girlfriend. He broke into the emergency department and took a knife to hold Sun Meng. He Jianyi tried to control the scene, and Liu Huimin took the opportunity to report the alarm. When the police arrived, they wanted to kill the mentally ill. He Jianyi stopped them and tried to persuade the mentally ill to put down the knife. Sun Meng wanted to take the opportunity to escape. However, the mentally ill patient broke the aorta and died unexpectedly.