Li Yan (played by Ye Shanhao) is 32 years old this year. He has been arrogant since he was a child and has a unique talent. He owns an information investigation company. In the first few dog-finding and adultery businesses, he was like a fish in water, but no business came to him in the next three months. But he unexpectedly received a million-dollar order - to go to the Stone Age Club to find Li Qianxun (played by Liang Jiaren), the president of Dazhi Group! The Stone Age can be called a suffering training camp tailor-made for the rich. The living conditions inside are almost primitive. Li Yan, who has no survival skills, suddenly fell into a serious survival crisis. In addition to the survival test of hunger, what makes Li Yan even more unhappy is that his neighbor Lao Zhao, who came only a few months earlier than him, lives a tasteful life. Senior backpacker Bian Xiaocha (played by Huang Lu) landed in the Stone Age one night. He was hunted by the Stone Age security guards because of his identity as an "invader". The three people were in constant conflict. In the process of running around and struggling to survive, "eating to death" became Li Yan's highest survival ideal. All the hardships seemed to have just begun. Once they strayed into the Neolithic Age, they had a deeper understanding of the "dire straits" of the Stone Age. All the people living here are elites from the outside world, with no worries about food and clothing, but the residents are committed to escaping from here - because they will be imprisoned here for life...