In this special two-part Halloween tale, set before the events of "WOD," Rania (the Sixth Tinkerer of Gallifrey) tells the story of how she and her companion, Craig Williams, arrived in the world of Halloween Town (from "The Nightmare Before Christmas") to help a lost little girl find her way back home. But it will ultimately be Craig and Rania themselves who will need saving from the evil force that threatens to tear their friendship apart.