Lumpik Spuntik

On the Danish island of Bornholm, trolls live deep underground according to strict rules — the most important of which forbids venturing to the surface, because humans are dangerous. Curious Spuntik is destined to become the master of the cave one day, but instead he plays pranks and flies on the backs of bats.

When a strange rumbling is heard from the surface, he secretly sets out to discover what is happening. Unexpectedly, his little sister follows him, and their expedition turns into an adventure in the human world, full of danger and magic.