The novel describes the story of a group of young and promising post-90s policemen in the Qingcheng City Subway Special Service Team (DTTQ Team for short), who deal with subway emergencies and investigate and arrest suspects. With the opening of subways in many cities, the passenger flow is increasing, and the task of maintaining subway safety order is becoming more and more important. This young DTTQ team actively adapts to the new situation, is based on practical training, and has accumulated experience by successfully handling a subway emergency, and has assumed the important task of maintaining subway public safety.
