Song Xiaochuan travels through time to ancient times and uses his modern knowledge and skills to build his own business empire, from brewing wine and making salt to improving spinning wheels and crafting fine machinery. He takes in retired soldiers and down-and-out people, forms a guard team, fights off bandit raids, and protects his home. Facing schemes and challenges from various factions, he uses his wits to overcome crises and earns the recognition of the county magistrate, the Yue Family Army, and others. He helps the oppressed, shelters displaced women, and leads the villagers to prosperity. From having nothing to becoming immensely wealthy, Song Xiaochuan establishes himself in a chaotic era and writes a legendary tale of an ordinary man rising to greatness.