Percival the caterpillar is upset that he is just a plain brown color, while his insect and animal friends have such beautiful colored markings, so he is happily surprised one morning when he wakes up from a nap.Percival the caterpillar is upset that he is just a plain brown color, while his insect and animal friends have such beautiful colored markings, so he is happily surprised one morning when he wakes up from a nap.