On his 55th birthday, Han Dayong is despised and kicked out of his home by his unfilial son and daughter-in-law over a pot of braised pork. Once the renowned "Black Mountain Pig King" of the Central Plains, he returns to the mountains with his skills intact and restarts his pig-farming business with his former apprentice, Chen Ahai. Using his family's ancestral pig-assessment technique, he saves a critically ill piglet with three needles. His free-range Black Mountain black pigs become wildly sought after by high-end customers, bringing in successive orders worth tens of millions. As his children repeatedly scheme against him and business rivals resort to underhanded tactics, Han Dayong carefully counters every move. He not only revives Black Mountain Ranch but also finds genuine love, ultimately becoming a universally respected legendary Pig King.