Sam (Jared Padalecki) and Dean (Jensen Ackles) investigate the mysterious deaths of two LARPers (Live Action Role Playing) who were playing a game entitled Moondoor. The guys are thrilled to discover the Queen of Moondoor is none other than Charlie (guest star Felicia Day). The three learn that a fairy (guest star Tiffany Dupont) has been commandeered to harm people and the only way to stop her is to find her master.