Fifty years ago, a group of local pedants (thieves) in Changsha dug up a silk book of the Warring States period. The incomplete article recorded the location of a strange tomb of the Warring States period, but these local pedants met strange events underground and almost died. Fifty years later, the grandson of one of the landowners found the secret in the notes of their ancestors. He called a group of experienced grave robbers to hunt. But who would have thought that there were so many strange things in this ancient tomb: even suspected coffins, green fox corpses, hydra ... whose is this mysterious ancient tomb, and they really can't find a real coffin? Why are there so many mysteries in the ancient tomb that cannot be solved? What is the relationship between the strange submarine ship cemetery, the Qinling Wannian Shenmu tomb and the Dachuan Snow Temple tomb discovered later and this ancient tomb? What is the mystery behind them?