Carla, the little caterpillar, sets off on a journey of discovery with her siblings. But they only think about eating, as they all want to become butterflies. Carla has no desire to do that. She is far too curious and has no time to eat. But then the others begin to pupate. Carla meets a beautiful butterfly and suddenly she wants to change, she too wants to become a beautiful butterfly. So she too begins to eat and eat and eat...