A hedgehog, hare, mole and an owl are four friends who meet on the edge of the forest to explore an almost forgotten spaceport. Everything they find in there is new to them. They haven’t seen things like that before. And when they see a rocket launch, they are stunned. None of them has the slightest idea what it is and they come out with many crazy explanations. And maybe they would still be guessing today if they didn’t meet a clever mouse. It explains everything to them, because it has spent all its life with the scientists at the astronomical station and so it knows a lot about the universe.