Synopsis：Based on a true story. A public shooting on the street ignites a massive uproar. Criminal investigation team leader Zhou Yutong and his apprentice Wang Feng track down a professional killer. As they move in to arrest him, the Fan brothers, who hired the killer, resort to desperate measures, setting off a massive explosion to silence witnesses. Wang Feng is killed in action, while the ruthless suspects murder a driver and hijack a vehicle, attempting to flee across the border through the snowy forests and plains. Without time to grieve, Zhou Yutong, burning with rage, pursues the criminals. Despite being severely injured, he refuses to let go, engaging in a life-or-death struggle with the armed bandit Fan Juyou in extreme temperatures of minus 30 degrees Celsius.