Klaus and Leo, the old friends and neighbours, couldn’t sleep a wink last night. The Moon appeared a little strange to them. Once the day breaks, they are both slightly grumpy after their restless night and decide to take a nap. During that time, the iron ducks Pauliine and Hubert fly by. Hubert wants a lollipop and the pair decide to venture to Australia – surely, there are some kangaroos and one of them might have a lollipop or two in her pouch. When Klaus and Leo finally wake up, the ducks have already left. But our old friends still have a mystery to solve: what is happening on the Moon?