The play is adapted from the original novel "Jiangliu Tiandi Wai" written by Sun Mingdy. It tells the story of a provincial deputy department inspector and professor of Qijiang University who has made great achievements in the field of environmental protection after the discovery of environmental problems such as water pollution in Qijiang City.The story of Zheng Hanjiang who was appointed as the deputy mayor in charge of environmental protection in a critical situation.