Truck driver Jake Lee's elderly father lives with his greedy daughter-in-law, who wants his savings and often leaves him alone. The elderly man falls into a root cellar. The daughter-in-law locks the cellar door, trapping him. Neighbor Chen Zhiguo hears cries, notifies Jake Lee. Jake Lee rushes home, and with Chen Zhiguo, rescues his heatstroke-stricken father, sending him to the hospital. Jake Lee then exposes the daughter-in-law.