JoJo's BFF, Miley, is planning her annual Halloween party; and as part of the fall fun, JoJo and her crew decide to hold a costume contest! They'll keep their outfits a secret until the night of the big bash, when they'll crown a winner. The only question on their minds: How much glitter is too much glitter? (Answer: No such thing!)

To spark their imaginations the group goes apple picking, hops aboard a haunted hayride, and taste tests an array of pumpkin-themed goodies. When the big day finally arrives, JoJo and her friends show up at Miley's party ready to wow the competition. Even BowBow is dressed to impress! But who is the mysterious party guest in the ghost costume, and what tricks--or treats--do they have up their spooky sleeves?