On the eve of New Year's Eve in the Year of the Snake, Yan Qian was immersed in the delicious food of old Beijing copper pot-shabu-shabu, but his peace was broken by a mysterious phone call. The other party mentioned old events in the Qinling Mountains ten years ago and involved him in an unknown conspiracy. In order to explore the truth related to the sacrifice of his brothers, Yan Qian joined hands with Fatty and reunited with Ouyang Feifei. The three of them went deep into the ancient tombs on the southwest border, where there were many traps and dangers. Not only do they have to deal with complex institutions and mysterious creatures, but they also have to beware of the covetousness of the Shadow Alliance. During the dangerous tomb robbing journey, can they uncover the shocking secrets hidden in the ancient tomb treasures and rewrite the history shrouded in fog?