Murder, robbery, rape, car banditry, and human trafficking. Under the impact of reform and opening up, the small town of Nanfeng quickly became one of the top ten most violent cities in the country. Lao Niu Niu Weiguo, who guarded Nanfeng as the captain of the criminal police brigade for twenty-five years, bravely marched forward in the face of stormy waves. He and his comrades solved countless cases in their long career, and eventually he became a city legend and a national model police officer.