While searching for "a wonder of nature" to share with their class for a special school project, Franklin and Rabbit are excited to find a chrysalis hanging from the branch of a bush. When they learn that the chrysalis is the home of a caterpillar that's soon going to turn into a butterfly, they know they've found the perfect wonder! There's only one problem --- Rabbit says he can't talk about their discovery in front of the whole class. He's afraid...