Grain-drying specialist Xu Chengchuan and Zhao Xiaoman travel to Yuwan for a job. After finishing the work, they are falsely accused by Qian Guixiang's family of delivering too little grain. The family impounds their vehicle and demands money. With an order deadline approaching, Xu Chengchuan is forced to transfer money to get his vehicle back. He withdraws from the cooperation in Yuwan and heads to Nanqiao, where he completes the grain-drying job efficiently. The Qian family refuses to admit wrongdoing and even lures other machine operators into their schemes, spreading rumors to smear Xu Chengchuan and causing losses to multiple parties. At a mediation meeting, Xu proves his innocence with evidence and demands compensation of 21,920 yuan. Later, Qian Baozhu attempts to intimidate him but is subdued by the crowd. In the end, the compensation is paid, those who spread rumors are held accountable, and Xu Chengchuan continues running his grain-drying business honestly and diligently.