Lin Feng, who lost his job and returned to his hometown, took his daughter back to his old home and took over an abandoned fish pond. Unexpectedly, the bottom of the fish pond connects to an ancient secret realm, and ancient bizarre creatures appear successively. Lin Feng's live streaming of fishing unexpectedly went viral, resolving family conflicts on one hand while uniting with partners to develop the fish pond cultural tourism project. The villain Lu Chen attempts to disturb the power of the secret realm and break the water balance. Lin Feng reaches an agreement with the secret realm's guardian giant beast to guard the ancient secret realm, defeat the villain's conspiracy, and lead the villagers to common prosperity.