Miss Murray is giving the class a lesson on insects, and has assigned each of the children a butterfly chrysalis to watch it change. As Fuschia 's, Kiku's and Andrew's butterflies all begin to hatch, but Little Bill's doesn't, Miss Murray notices that Little Bill was given a moth pod instead. She tells him that moths usually take longer to hatch, and may come out at night; she allows Bill to take his insect home so he doesn't miss the hatching. Just before he's about to fall asleep, the moth peeps out from its pod. Bill takes Mr. Moth to school the next day, and the students all release their insects into the sky.