Young Xiaofan's Fantasy Journey Fisherman's son Xu Xiaofan ventures to a small island with his younger sister and classmates, where they accidentally enter a mysterious underground kingdom. To help their new friends in this enigmatic realm, they return to the island in search of a treasure, outwitting antique smugglers through wit and courage, ultimately securing the precious artifact. The kingdom's elder, Buck, expresses gratitude to Xiaofan by restoring health to his paralyzed father.