Chief Investigation Director Jiang Jianqiu (played by Zhang Xiwen) looks cold and unsmiling, but in a listed company corruption case, she approached the key figures in the case as an expectant mother and successfully found a breakthrough to solve the case.Chief Investigation Officer Situ Qiwen (played by Chen Shancong) has worked in the ICAC for more than 20 years and takes great care of newly recruited ICAC officers.

While investigating a maintenance bidding case, he took his assistant investigation director Ding Xin (played by Chen Xingyu) and pretended to be father and daughter to buy a property together.With the help of the police, he successfully persuaded the key figures in the case to serve as informants and collect criminal evidence about the construction company involved.

Senior Investigation Director Robin (played by Cheng Junhong) is good at analyzing problems from a scientific perspective. With his calm and calm personality, he used his IT expertise to find traces of communication between prisoners and the outside world in correctional officer corruption cases, and successfully solved the problem.The Correctional Services Department detects the case before searching the warehouse.In the middle school engineering corruption case, although Zhong Qiaoling and Ding Xin had great differences in their judgments about the people involved, they still insisted on pursuing the truth.Even in another insurance bribery case, when they were ordered to stop contacting the case because they knew one of the people involved, the two still did not give up. Their strong sense of justice and mission drove them to work tirelessly towards the goal of uncovering the truth.

The Independent Commission Against Corruption received a complaint that the owner of Fu Xiang Building suspected corruption in the tendering process for repairs.After investigation, it was found that among the companies bidding for the Fuxiang Building project, in addition to Lin's Engineering, many other companies suddenly withdrew their bids due to different reasons, and it seemed that Peng Shao and Big K, who had gangland backgrounds, were involved.Situ Qiwen pieced together the entire corruption chain from various clues, and finally discovered that the mysterious operator behind it was Huo Wanlian (played by Zheng Zeshi), the boss of “Wannian Construction” who was hiding in the Chinese medicine clinic every day and directing everything.Jiang Jianqiu and the entire team of investigators were ready and carefully planned, hoping to collect evidence of Huo Wanlian's crime through Lin Qiang, the boss of “Lin Engineering”.However, unexpectedly, Lin Qiang was timid due to fear on the spot, putting the entire plan in jeopardy.

The Independent Commission Against Corruption received a complaint from the Correctional Services Department, which suspected that correctional officers were accepting benefits from prisoners and smuggling mobile phones into prisons.The ICAC dispatched investigators to the Correctional Services Department to investigate and found that two correctional officers Yang Zhilin (played by Luo Tianyu) and Li Jiwen had a close relationship with an inmate named Zhuhao.Yang Zhilin, who appears to be upright, has been performing well at work and seems to have nothing to do with the incident.On the contrary, ICAC officers discovered that Li Jiwen secretly solicited benefits from the visitor Zhang Xiaolan.The ICAC determined that Li Jiwen was a black sheep, but there was no further evidence that he assisted Zhu Hao in smuggling phones.While the case was reaching a stalemate, the Correctional Services Department decided to set a deadline for the warehouse search operation in order to prevent Zhu Hao from continuing to control outside crimes through the phone.Integrity officers have to race against time to find enough evidence before the warehouse search operation.At this time, Zhong Qiaoling and Ding Xin accidentally discovered the unknown side of Yang Zhilin...

The Independent Commission Against Corruption received a complaint that Xian Jiahong (played by Lai Chaoyun), the owner of the listed company Bravo Fitness, purchased a yacht in the name of the company for personal use and was suspected of embezzlement of public funds.The investigation found that Xian Jiahong had a close relationship with the banker, Uncle Cha, and it was suspected that the two conspired to control the company's stock price and even obtained ill-gotten gains through shell buying.Situ Qiwen and Anan listed all the relationships between Xian Jiahong and found that his personal assistant Chen Shuorong (played by Luo Ziyi) was Xian Jiahong's middle school classmate. He had been favored by Xian Jiahong many years ago and has been loyal to him ever since.Work for him with dignity.The ICAC took the initiative to seek Chen Shuorong's assistance.Will Chen Shuorong speak out for justice, or will he choose to turn a blind eye to Xian Jiahong's crimes out of gratitude to his benefactor?

The Independent Commission Against Corruption earlier received an anonymous complaint alleging that Zhou Wenzhe (played by Zhou Zhikang), a teacher at Dequn Middle School, has a close relationship with Pang Wenwei, the person in charge of the school contractor Zhiwang Engineering, and suspected that they were involved in corruption.ICAC officers immediately launched an investigation and followed Zhou Wenzhe to a tea restaurant and found him meeting Pang Wenwei.During the meeting, Pang Wenwei handed Zhou Wenzhe a paper bag containing cash with the intention of paying a bribe, but Zhou Wenzhe refused in person.However, the ICAC later discovered that Zhou Wenzhe had registered the business for his own company under the name “Yuetian Engineering”, and suspected that he had used a shadow account with the same name to steal the school's project expenses.What is Zhou Wenzhe's real purpose?Did he accept bribes?The truth of all this is still to be revealed.

The Independent Commission Against Corruption received an anonymous letter involving an insurance-related corruption complaint.The complainant alleged that a group of brokers organized and used improper methods to earn company commissions, and the mastermind was Le Qi (played by Xie Dongmin).After investigation, the ICAC found that Le Qi had a close relationship with a female guest, Huang Fengying (Cai Jie).Huang Fengying's husband Pan Decheng (played by Xu Rong) unfortunately fell down and died while hiking in the field. Not long before the accident, he purchased a huge life insurance policy for himself, and the beneficiary was Huang Fengying.After in-depth investigation, the ICAC decided to find Le Qi and Huang Fengying for investigation.During the questioning, Le Qi insisted that Huang Fengying took the initiative to give him 30“ of the compensation as a reward for accelerating the application for compensation.On the other side, Huang Fengying said that the other party asked her for 30” of the compensation.Just when the investigation was at a deadlock, the ICAC discovered that Pan Decheng had appeared in Hong Kong, making the entire case even more confusing.(finale)