This film tells the story of Shen Tianyi, a water management expert, and his fellow student Xin Yuanhang, who encounter a series of eerie events involving "walking corpses against the current" while addressing the issue of Yellow River flooding in the Gumu Village. They unexpectedly rescue their former companion, Yu Yin, during the process. Together, they embark on a journey to uncover the truth behind the enigmatic occurrences related to the Yellow River. Shen Tianyi and his companions analyze layer by layer and gradually unravel the mysteries, ultimately discovering a scientific solution to manage the water disaster, bringing lasting peace and harmony back to Gumu Village....