The film is adapted from a true story. A murder case in the street caused a great uproar. Criminal investigation captain Zhou Yutong and his apprentice Wang Feng tracked down the professional killer after several investigations. When they were trying to arrest him, the two brothers of the Fan family who hired the killer took the risk and designed a big explosion to kill people. Wang Feng unfortunately died in the operation, but the brutal suspect killed people and hijacked cars, trying to cross the snowy forest to leave the country. Zhou Yutong, who had no time to grieve, pursued the killer in anger. He was seriously injured but insisted on holding on. He fought a desperate battle with the bandit Fan Juyou in the extreme cold of minus 30 degrees...