Zhuang Rui, Fei Fei, Huanf Fu Yun, and Peng Fei travel to the desert, where they meet Old Zeng and his son A'Lai. Old Man Zeng refuses to tell the group about a possible Buddhist cave in the desert, and when A'Lai overhears Peng Fei and Huang Fu Yun talking about it that night, he slips away that same night despite the sandstorm.