Johan Hagelbäck Tecknad Film AB

At the museum they suddenly realise that one of the poison arrow frogs has escaped from its cage. Panic! Everyone is terrified, because the poison arrow frog is one of the world's most poisonous creatures. But fortunately there's a hero at the museum that day! We're not going to give away how he saves everyone, but let's just say that frogs and people aren't that different after all.

Kalle Kran works high above our heads in one of those building cranes. He sees almost everything, is a really nice guy and has a really strong crane. When things are wrong, he puts them right. There's no limit to what Kalle can fix.