The play tells the stories and experiences of six young people with different personalities, family backgrounds and environments as they mature step by step. At the beginning of the story, Ding Zilong, Jiang Erbao, Mei Yuan, Liao Jun, and Zhang Zhigang became firefighters because of their own reasons. Since then, they have participated in many safety accidents: they have dealt with dangerous chemical leakage, traffic accidents, building collapses, safety production accidents, people in distress accidents and emergency rescue work, etc., where there is a need, They are everywhere. But the good times didn't last long. An accident happened in a firecracker factory, and Zhang Zhigang passed away suddenly. Faced with the sacrifice of his friend, Liao Jun couldn't bear the heavy blow and quit the firefighting force ahead of schedule. The other four, Ding, Mei, Jiang, and Cheng, endured their grief in the solemn and heavy songs, wiped away their tears, and completed the evolution from mutual competition to mutual assistance. The inspirational spirit of being cynical and independent makes them admirable firefighters in the new era