After their deceased grandmother leaves them both her isolated seaside mansion, two feuding families start a turf war over it. However, when her secret lover enters the picture, they decide to put their differences aside to get rid of him.

On a remote Adriatic island a group of children discovers a mysterious boy hidden in a nearby lighthouse. Convinced he’s an alien, imaginative Karlo from Zagreb rallies the gang on a mission to return him “home.” But when local boy Bumbar learns that the little one is actually an African refugee, the adventure turns into a struggle for justice and friendship.