Wu Jianjun, a young man from a poor mountain village, is introduced to the Zhou family for a marriage meeting through Auntie Wang. There, he encounters the local bully Wu Dakui abusing the sisters Zhou Xiulan and Zhou Chunmei. He steps in to save them and promises to repay their 300-yuan debt within three days. Armed with nothing but an old hunting rifle, he ventures into the mountains to hunt pheasants, rabbits, and wild boars, earning a handsome price for his catch and clearing the debt. He also establishes a supply partnership with a restaurant in town. Facing the unfair treatment of his biased parents and the demands of greedy relatives, he stands firmly by his wife and eventually cuts ties with his family. He then leads the villagers in fighting a wild boar infestation, earning everyone's respect and proudly marrying Zhou Xiulan, turning their days of hardship into a better life.