The play takes the growth of young police officers as the main line and describes the daily life, feelings, frustrations and growth experiences of young urban police officers.
Ten years ago, Zhao Pengcheng (played by Yu Yi) was attacked by a suspect armed with a gun while performing a mission. He was stuck while shooting. At the critical moment, Master Xu Lei stood in front of him and shot the criminal to death, and he was also injured. This is Zhao Pengcheng's heavy psychological pressure at home and at work.
Ten years later, Zhao Pengcheng and Liu Gaolu were attacked by the police while trying the case. When Liu Gaolu fired a warning shot, a shell injured a passerby, causing an accidental "discharge" and the defendant went to court.
The case caused police to think about laws and regulations on the use of firearms. Lawyers Chi Yu and Zhao Pengcheng are looking for important evidence to clear Liu Gaolu's crime. Zhao Pengcheng admitted to Liu Gaolu that he reported the "fire accident", but this was misunderstood by everyone.
While handling another robbery case, Zhao Pengcheng stopped in front of Liu Gao Road and shot the criminal to death, letting everyone know the practical significance of his reporting of "fire accidents".