Ten years ago, Zhao Haiyang’s mistake during a manhunt led to the death of his mentor, Xia Hui. Now, Zhao is the Deputy Director of Dongzhou’s Public Security Bureau, while Fang Cheng, a former colleague, returns to the city with innovative ideas for police reform. Tension arises as Zhao is skeptical of Fang’s methods, but the new techniques prove effective in combating a wave of modern crimes. Just as progress is being made, the killer from a fifteen-year-old case resurfaces, forcing Zhao and Fang to join forces to bring the criminal to justice while facing an unseen, powerful adversary.
In order to better support the blind mother of his fallen comrade, Kong Wanshan voluntarily gives up the preferential treatment policy granted by the state and settled at the foot of Mount Tai. There, in his twilight years, he finds the abandoned baby, named Shanxi.
Xiao Liming, the representative of the peace and security of Chinese builders, faces the complexity of social contradictions in network fraud, investment mine, corporate compliance, and other risky challenges, and interest groups to fight to protect the people's peace and happiness.
An Ni, a prosecutor of the Jiangcheng Procuratorate, was assigned by Chief Prosecutor Xu Ailin to handle the case investigating a missing college student who jumped off into a lake. She started with Zhao Jikai, the General Manager of Huiquan Games, and found connection between him and overseas organizations that promote bullying, leading to the arrest of the crime perpetrators. While Huiquan Games’ stocks price plummeted, Yin Huiquan donates to Jiangxiao Academy which would in turn corrupt minors in the guise of charity. The student Li Xiaowen and other victims come forward, publicly denouncing the unorthodox means of Jiangxiao Academy to control youngsters. An Ni presents solid evidences in the court, leading to the academy’s shut down and punishment of those who were involved. Yan Qin, who took over the Huiquan Games, misappropriated the funds to invest in the development of a copper mine. However, this investment venture was a Ponzi scheme by an online financial fraud gang.