The Mystery Inc. gang has solved their most puzzling case yet by apprehending Coco Diablo, the leader of a notorious costume crime syndicate. However, their triumph is short-lived as eerie duplicates of themselves and their familiar adversaries begin to appear in Coolsville, threatening to ruin Halloween. It's now up to the meddling kids to uncover the identity of the new villain and save the holiday.
Trick or Treat Scooby-Doo!
After solving the mystery and capturing Coco and Kitty, the gang can finally unwind and savor their hard-won downtime.
