 Ben, Matt, Susan, and a few other residents of the Lot try to prevent the vampires from spreading.In the end, Ben and young Mark Petrie succeed in neutralizing Straker and destroy the master vampire Barlow, but, lucky to escape with their lives, are forced to leave the town to the newly created vampires.Although the story's overall structure remains similar, several lines have been consolidated and/or simplified, in keeping with the much-shortened radio format (seven 30-minute broadcasts).