In 1983, deliveryman Chen Xiangdong unexpectedly travels through time and becomes the village idiot everyone in Qingshi Village looks down on. With an impoverished household and a difficult life, his only source of care, his sister-in-law Shen Qiuhe, is being pressured by her family to remarry. At this critical moment, Chen Xiangdong awakens a Daily Intelligence System. Using the information it provides, he discovers business opportunities and raises money to resolve the crisis. From buying mountain produce to running a charcoal business, he gradually opens up new markets through honest business practices, but repeatedly falls victim to schemes by the unscrupulous merchant Zhou Gui and his greedy relatives. Facing one obstacle after another, Chen Xiangdong cleverly counters every move. Not only does he earn the respect of those who once looked down on him, but he also helps Shen Qiuhe escape her predicament and establish an independent business, leading the impoverished mountain village onto the road to prosperity.