The play uses a vicious case as the entry point and tells the heroic story of two generations of public security officers who brave hardships and dangers to maintain peace and eradicate criminal gangs through the perspective of young detective Chang Zheng. In the small town of Changwu, on the front line of a crisis-ridden battle, Chang Zheng, deputy captain of the Criminal Investigation Brigade, was involved in numerous whirlpools due to his long-term pursuit of the powerful Zhao Xiaosheng family.
