In the 1970s, modern youth Su Tong time-travels and is exploited, along with his two younger sisters, by his uncle's family. Accidentally obtaining a portable space containing a spiritual spring that can store all things, he breaks ties with his wicked relatives, catches fish and hunts to trade for supplies, and gets acquainted with Xu Dali and others. The uncle's family colludes with human traffickers and rogues to repeatedly harm him, all of which Su Tong resolves. He goes deep into the mountains to hunt bears and fierce tigers, clears out a large batch of supplies hoarded by corrupt officials, eradicates local evil forces, uses the obtained supplies to establish a village school, leads the villagers to obtain sufficient food, and peacefully gets through the famine years.