A modern human transmigrates into the meat pig Zhu Yiming. Seeing that in half a month he will be sent to the slaughterhouse, he relies on gorging food to rapidly gain weight, taking the opportunity to break free from the transport truck and escape deep into the mountains. As soon as he enters the mountain, he encounters a pack of wild pigs, narrowly winning by relying on the rebound property of his fat, and builds a friendship with the wild pig leader Tusk Boss. Zhu Yiming frantically forages in the mountain forest to continuously grow stronger, unintentionally eating the wild yams reserved for winter by the wild bull Tie Jiao, and also breaking into the north slope territory. Tie Jiao threatens to expel Zhu Yiming, planning to use Zhu Yiming's fat body to lure a wolf pack. Zhu Yiming finds Tusk Boss for special training, figures out Tie Jiao's weakness, sets a trap by the salt spring, uses the muddy pond terrain to defeat Tie Jiao, and takes over the north slope salt spring.