The drama was filmed in Mudanjiang, Heilongjiang.

It is a suspenseful criminal investigation drama directed by Zang Xichuan, starring Chen Jianbin, Hu Jun, and Deng Jiajia, and starring Shi Ce, Lu Hong, Chen Jingke, Yu Yang, Feng Qinchuan, Zhao Jian, Wang Guangyuan, Lin Xiao, Xing Jiadong, Jiang Hongbo, Yang Yutong, etc.

It tells the story of Guan Yu, who was born as a soldier, with a meticulous mind, rigorous style, and extremely strong physical and mental qualities. He solved numerous major and minor cases and grew up from a simple and vigorous novice detective to a wise and sophisticated Lanhe County detective with rich experience in solving crimes.Team captain.Guan Yu, who was promoted to captain of the criminal police, was in a deteriorating condition. After the 1223 major case, Guan Yu was ordered to be in danger.

Under the pressure of time, pressure from superiors, and the loss of relatives and comrades-in-arms, the evil hands are still hidden deep under the ice. Facing this intertwined and involved case, can Guan Yu hold high the light of justice and the fire of hope?Melt the frozen Lan River.