At the commendation meeting of Dong Chuan province's "Top Ten Figures of the Rule of Law," He Shu Guo who is the director of the Second Prosecution Department suddenly comes face to face with the family members of a death row convict. In order to find out the truth, legal committee secretary Zhang You Cheng appoints Feng Sen as the leader of the prosecution team to investigate the case in depth. Feng Sen tries to do his job yet his unorthodox style of handling cases ignites several disputes. In the process of reopening an old case, layers upon layers of mist are gradually lifted to reveal a harsh truth. Feng Sen works with Luo Xin Ran of the Inspectorate Office as they stick to their professional ethics and refuse to cower in the face of threats, all in the name of maintaining authority of the law.

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.

The drama tells the story of Xiao Li Ming as the representative of the peace and security of Chinese builders, facing the complexity of social contradictions in the network fraud, investment mine, corporate compliance and other risky challenges, and interest groups to fight to protect the people's peace and happiness.

After suffering from a devastating calamity due to the earthquake, the story set in Tangshan is an emotional journey about two households, three generations and nine people with different last names who come to form a family.