The film is based on a true story. A shooting incident on the street, which caused a great uproar, led Captain Zhou Yutong and his apprentice Wang Feng to investigate and track down a professional killer. During the investigation, the two brothers from the Fan family who hired the killer resorted to desperate measures, planning a major explosion to silence the witnesses. In the course of the operation, Wang Feng tragically sacrificed himself. The ruthless criminals, attempting to escape, committed further crimes, hijacking cars and attempting to cross the snowy wilderness. With no time for grief, the enraged Zhou Yutong relentlessly pursued the criminals. Despite sustaining serious injuries, he persevered in the freezing cold of minus 30 degrees, engaging in a life-and-death struggle with the fierce criminal Fan Juyou....