Lumpik Spuntik

On the Danish island of Bornholm, trolls live deep underground following strict rules - the most important forbids them from going to the surface, because humans are dangerous. Curious Spuntik is meant to become the master of the cave one day, but instead he plays pranks and rides on the backs of bats.

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