The drama takes a malignant case as the starting point and tells the heroic story of two generations of public security officers who, from the perspective of young criminal police officer Chang Zheng (played by Huang Jingyu), fearlessly move forward to maintain peace and eliminate criminal gangs. In the small town of Changwu (fictional location), on the front line of the crisis ridden battle, the Criminal Investigation Department
The drama takes a malignant case as the starting point and tells the heroic story of two generations of public security officers who, from the perspective of young criminal police officer Chang Zheng (played by Huang Jingyu), fearlessly move forward to maintain peace and eliminate criminal gangs. In the small town of Changwu (fictional location), on the front line of the crisis ridden battle, the Criminal Investigation Department