Erik falls in love with Greta and travels to Stockholm to visit her, but trouble finds him.

In order to avoid ending up at the poorhouse, five orphaned children tries to make the best of their lives.

The little town Västerköping needs a new police man - but the only applicant is the small and tiny Fridolf. He gets the job but has to work with the big and strong police inspector Göransson. The town is visited by a crook who has specialized in stealing from local councils. Can this unusual pair stop him?