A letter reporting that the famous Canghai company Ju Lun Group covered up the truth of the mine disaster made Deputy Director Qu Jianghe (played by Pan Yueming) the focal figure in the campaign against crime and evil. When he intervened in the investigation, he found that there was no clear boundary between black and white in reality. For various interests, his opponents, his friends, and even his superiors all demanded that the truth be covered up. The newly appointed female director Yan Ge (played by Chen Shu) did not expect that reality was so cruel and heroic... Covering up is a greater sin than the sin itself.