An official archaeological team loaded with scientific and technological equipment entered the Dragon Bone Wasteland, but encountered space folding while crossing the "Valley of No Return" and all members were trapped. The captain died under a strange rule: he could not look back at the shadow behind him.
As a temporarily recruited guide, Ji Gui discovered that there were "inhuman" beings mixed into this team. As they went deeper, the team members died suddenly one after another: some people melted into a pool of mercury because they said the forbidden name; some people tried to use modern weapons to blow open the stone door, but it triggered "time backtracking", allowing the dead teammates to resurrect and attack the living people crazily.
Ji Gui relied on his keen intuition of the ancient rules to save everyone time and time again, but was accused by the deputy captain of being a disaster star. When the team split and the cannibalism began, Ji Gui revealed the truth: the "source" they were looking for did not exist at all, and this was an execution ground set up by humans in the previous era.
The real terror is not the monsters outside, but the greed in the hearts of the team members. When the final stone door opens, Ji Gui must make a choice: use the power behind the door to reshape his body, or abide by the ancient contract and become the gatekeeper of this huge tomb forever?
The moment before the petrified plague spread all over his body, he smiled because he saw an unexpected person walking into the trap.
