When Spencer tries on Billy's fur coat and stands under the moonlight, he accidentally turns into a werewolf. Spencer would think this was pretty cool if it wasn't class-picture day. Fortunately, the werewolf effects wear off in daylight, when the moon can't be seen. Unfortunately, the moon rocks on display in science class make his bad hair day return with a vengeance. With picture time approaching, and Ponzi determined that no student opts out, will Spencer figure out a way to shed his fur?