In this animated adventure, the beloved Mystery Inc. gang embarks on a Halloween-themed escapade filled with spooky surprises and mysterious happenings. As they unravel a new mystery, the team encounters a series of eerie events that challenge their sleuthing skills. Directed by Audie Harrison, the film features the familiar voices of Frank Welker, Grey Griffin, and Matthew Lillard, bringing the iconic characters to life once again. Fans of the franchise can enjoy this entertaining installment on 123Movies / Movies123 for free.