The small volcanos only wanted to help Krato's parents harvest stinging nettles. And in return, together with the grumpy grandfather Vulk, they ended up in a floating barrel. The river current carried them to a mysterious island, where flowers abounded and many berries and delicious fruits grew. A real paradise for hungry volcanos! But something is bothering grandfather Vulk. The lake around the island seems very suspicious. It looks like a dangerous frothy lake from an ancient song, the words of which he can not remember…