Chen Sanyuan (played by Teng Liming) was promoted to trainee inspector and transferred to the Ministry of Transportation. As a new boss, she was strict with herself and had very high requirements for her subordinates. Therefore, Sanyuan easily had friction with her subordinates, and she did not get along with Wei Yingzi (played by Cai Shaofen), who had just entered the Ministry of Transportation. Influenced by his father Wei Yingxiong (played by Xia Yu) since childhood, Yingzi has always liked to drive fast. In the process of chasing the speeding gang, facing the cunning speeding gang, Yingzi was fortunate to have superb driving skills, and together with Sanyuan, he brought the speeding gang to justice. The two of them even cleared their suspicions and became good partners at work. Because Sanyuan has been busy with work and neglected her husband and children, her husband Cheng Feng (played by Wei Junjie) was very considerate at the beginning, but then faced with Sanyuan's worsening, the couple had to end the bureau. But they still have many opportunities for cooperation at work, and their daughter happened to be held hostage by the gangsters in an armed robbery. Facing their young daughter, the two worked together to save their daughter. Yingzi is mistaken for a speeding driver by her superior and is transferred to the task force led by Chen Xiaosheng (played by Ouyang Zhenhua). Xiaosheng and Yingzi both think that the other is their nemesis and often quarrel with each other. Later, Yingzi was comforted by Xiaosheng many times when she was frustrated, and gradually developed feelings for him. However, at this time, his father Yingxiong disliked Xiaosheng because he was much older than Yingzi and opposed this relationship. The relationship between the two was in a dilemma...