About the title
In 1979, the bones of a mysterious creature were found in one of the caves of the Kunlun Mountains. Hu Bayi assembles an expedition into the depths of these mountains to find more paleontological relics. Descending below, the researchers discover an underground city of a vanished civilization that possessed great power and knew the secrets of life and death. The joy of such a wondrous find is overshadowed by large, aggressive creatures attacking the group of researchers.