It's Not a Mudslide, It's a Flash Flood.

Presented in unit form: A self-driving trip, an unexpected adventure of travel friends, a group of people mistakenly entered another world. Rumor has it that there is a stone mountain near Xishuangbanna, Yunnan, and there is a stone village in the mountain. There is a stone cave in the village, and treasures are hidden in the cave. At the foot of the mountain, Song Wan opened the exquisite gold box that Granny Meng had secretly given to her. She looked at the dark piece of wood inside the box and felt worried. Where was the treasure map of Stone Village that she had promised? Is it such a broken piece of wood? What's the use? Tang Yi glanced at the soup that had not bubbled for a long time in the iron pot: it was just for making fire sticks. Song Wan: ... I might as well use a lighter.