Mao Xiaoman returns to his hometown and chooses to stay, facing the abandoned fish pond that his father failed to complete back then. Facing the villagers' doubts and repeated failures, he plants aquatic plants, changes varieties, runs to the agricultural technology station, and with the support of his mother Zhao Guiying, finally turns a pond of muddy water clear and makes the fry bounce around among the aquatic plants. That sentence in his father's notebook, if one day someone can go on, that must be my son, became the strength that kept him going. On the day the water quality test passed, at the villagers' meeting, the fellow villagers stood up one after another: I will follow Xiaoman to do it! From one person to a group of people, from a pond of clear water to the whole village getting rich, Mao Xiaoman used action to prove that once he sets his mind on something, he will not turn back.