It is a beautiful, sunny day in the meadow. Maya and Willy are heading towards a fallen tree. Then thay settle in a ray of sunlight on the trunk of the tree as though about to watch a show. In front of them, a chrysalis is attached to a twig. Then the butterfly pulls itself out of the chrysalis. Its wings are stuck together. It does not look at Maya and Willy but lifts its nose to the sky and seems to be searching for a ray of sunlight. Fascinated by the sight, neither Maya nor Willy see that an enormous green caterpillar has slipped softly behind them, chewing a leaf.