Wu Shiyi graduated with his friend Lin Mu, who he met in school. The two chose to return to their hometown of Weimu City to work as criminal police officers. They met captain Yao Yuan and many friends such as Yang Chenxin, Zhao Rui, Liu Qixing, and Liu Mingxing at the General Bureau. All members of the Criminal Police Team of the General Bureau solved many cases together. After many challenges, several young guys and girls gradually grew into qualified criminal police officers.
