Sam is forced to confront a childhood fear when a case takes him and Dean to Kansas to investigate Plucky Pennywhistle's Magical Menagerie, a local pizza chain that hosts children's birthday parties. Sam and Dean discover that the victims' children had recently been to the restaurant and drawn a picture of their worst fear, which then came to life to kill their parent. While Dean confronts the man behind the magic, Sam is left to deal with some very angry clowns.