Zhang Daxi, a hunter from the 1970s, time-travels to the wilderness and is immediately treated as a sacrifice upon arrival. Riding a tiger out of a cave, hunting wild boars, digging up sweet potatoes, making salt and weaving clothes, and building heated brick kangs, he gradually brings modern survival wisdom into the primitive tribe. When foreign enemies invade, he sharpens javelins, erects fences, and sets up ambushes, forcing his opponents to flee in panic. The Canglin Tribe, which once suffered from starvation, finally welcomes a new beginning thanks to a bite of hot rice and a guide. Zhang Daxi is enthroned as king, leading his clansmen toward food, warmth, and hope.