Zhou Zhenhai, a veteran business tycoon who retired from public life ten years ago, returns to Shanghai with his wife to visit his son, Zhou Shiming. Bai Manli, his son's fiancée, abuses her status as the future daughter-in-law and throws her weight around, causing one disturbance after another at the guild hall. Zhou Zhenhai quietly investigates behind the scenes, gradually uncovering a vast network of corruption involving the embezzlement of relief grain. After enduring numerous hardships, Zhou Shiming sheds his spoiled young-master habits, while A Di, a young apprentice, distinguishes herself through her intelligence and courage. Together, they overcome one crisis after another, root out the corrupt insiders, restore the guild's strict rules, and uphold its original mission of helping the people and serving society.