After Crystal Cove instates a city-wide curfew, Velma has no choice but to spend the night with band geeks… and Fred. Later, Daphne makes a discovery of her own.

While Velma and her friends suffer through a Saturday detention, Amber attempts to use witchcraft to summon the ghost of a dangerous adversary.

The gang has only 24 hours to face their biggest fears, bring Velma back, and save the annual Sexy Halloween party!