Janet is disappointed by the all-school field trip to a light show, considering that she wanted to see a magic show. She tells the class she could do a magic trick, but she cannot because of the ghost that haunts the theater. When the class leaves the theater they find Arnold missing. When they enter the theater again, they see Arnold's "ghost." Keesha, the skeptic, is convinced that it is really a trick done by Janet to scare them. She soon finds out that Janet is using the Pepper's Ghost Effect to scare the class.