Fire investigator Xu Tongsheng is determined to uncover the truth behind an old case involving his family. He reunites with his childhood friend, forensic doctor Xin Chun, and criminal investigation deputy captain Shen Ye during his work. The three collaborate to establish a rapid response mechanism for major fire incidents and work together to solve a series of mysterious fire cases.

• Leon Zhang
• Cai Wenjing
• Dai Xu
• Tu Songyan
• Wang Longzheng
• Wang Tonghui
• Zhang Fan
• Su Jinyuan