Synopsis

Upon their arrival on Earth, the extraterrestrials—led by the Bird-Kersees—have perceived Halloween as a danger. Consequently, they have erected a barrier at the entrance to Hidden Hills, barring costumed children from entering. In contrast, the Weavers are eager for their first Halloween in the suburbs and wish to open the community gates for celebration. They endeavor to explain the custom of trick-or-treating to the aliens. Simultaneously, Marty and Debbie’s anxieties come to pass when Amber,