Lin He, an agricultural university graduate, returns to his hometown and exposes a scam involving medicinal herbs advertised as miracle crops worth 50,000 yuan per mu. Instead, he is cursed by the entire village and driven out of his home by his own father. Living in a basement in the county town, he relies on his agricultural expertise to handcraft sweet potato vermicelli that never turns mushy, carving out a niche in the market. When the scam collapses, leaving villagers bankrupt and their farmland hardened and abandoned, Lin He goes against the trend and leases a thousand mu of ruined land. He improves the soil through sweet potato cultivation while building an integrated vermicelli production chain. Facing malicious reports and acquisition threats from Wu Degui, the mastermind behind the scam, Lin He carefully executes his plans and joins victims from three counties to gather evidence, ultimately bringing the fraud gang to justice.