15-year-old Marnie (Kimberly J. Brown) has just spent 2 years with her grandmother Aggie (Debbie Reynolds). While hosting a wikt:mortality neighborhood Halloween party at their house, Marnie tries to impress a cute new boy, Kal (Daniel Kountz), by showing him Aggie's magically-hidden room. Soon Aggie notices unwelcome magic (paranormal) symptoms. She and Marnie travel to Halloweentown to investigate and to fix the problem before the portal between Halloweentown and the mortal world, open only on Halloween, closes at midnight.
Every DCOM ever aired... minus the commercials.
On Halloween night, three siblings — Marnie, Dylan, and Sophie — learn that their grandmother, Agatha Cromwell, is actually a witch living in Halloweentown, a community where spooky beings have separated themselves from Earth's history to escape humans' fear and persecution.