
Ponyo, a fish-girl and daughter of the sorcerer Fujimoto, runs away from home and washes up near a seaside town. Rescued by Sosuke, a five-year-old who lives in a house on the cliff, she falls for him and wishes to become human. The magic her wish unleashes throws the world out of balance, and as a storm swallows the town, Sosuke is asked whether he can love Ponyo as she is, fish or human.