Jiang Chen was reincarnated and returned to the fateful night of the drunk driving investigation. He saw through the plot of his reborn ex-girlfriend Liu Man to steal credit and saved Shen Qingxiao, who was about to be murdered. With his keen judgment, he helped capture an absconding corrupt official and gave early warning to save Tao Xuan, who was about to die. Later, Jiang Chen was transferred to the position of assistant to the county magistrate of Huimin County, and worked side by side with the airborne county magistrate Shen Menglan, and struggled to break through the dilemma of intertwined local interests. After Shen Menglan was killed by gangsters, Jiang Chen endured his grief and finally wiped out the evil gang.