On a summer night with thunder and lightning, Lao Tu took the risk of driving into the rain to save his greenhouse, but unexpectedly fell into a quagmire. At the moment of life and death, he and Zhang Xiaosan, who had had conflicts with each other, launched a thrilling rescue and self-rescue. Lao Tu discovered a business opportunity out of desperation - transporting pure soil from the swamp to the city for sale. He cherished the dream of getting rich and lived in the open air, but he repeatedly encountered obstacles and even ended up living on the street. Three years later, he unexpectedly reunited with his son, but Lao Tu was in a trance and only had the unsold car of pure land in his heart.
