When fat little Caterpillar turns into a butterfly she finds that her mouth is no longer the right shape for eating leaves. She enlists the help of her best friend, the Ant, on a search for food, and along the way receives unhelpful advice before Bumblebee shows her how to kiss flowers.
Caterpillar longs to be able to fly but he doesn't have any wings. When Butterfly comes along, she smiles a secret smile because she knows something Caterpillar doesn't! A special 10th anniversary edition with sound.