The lives of a college student and a video game designer are kept being reset after an explosion on a bus. During each reset, they have to work together to find out what the reason for the explosion is. Will these two be able to save themselves and their fellow passengers? Will they be able to close the time-loop?

Hu Ba Yi, Shirley Yang and Wang Pang Zi explore a mysterious tomb in the Shaanxi region. Shirley Yang travels to the Longling Maze Grottos to investigate unusual patterns on fossil fragments. On the way, she crosses paths with Hu Ba Yi who along with Wang Pang Zi have just escaped from the ancient city. The trio become companions in another tomb-raiding adventure. ~~ Adapted from the 2nd volume in the novel series "Candle in the Tomb" (鬼吹灯) by Zhang Mu Ye (天下霸唱).