A stranger comes to a fishing village, which plans to catch lots of fish through poisoning the river.  As the villagers debate, they are warned against this by a traveling priest. A fisherman saves a little turtle and is taken to an undersea palace. Two boys go to ask the fire god to help them with a demon who's been raiding their village.
Once upon a time, on the beach 
at the edge of a village,
Érase una vez hace mucho tiempo, en 
alguna playa del límite del pueblo,
Hace mucho, mucho tiempo, 
en una aldea a orillas del mar,