Andy and Daphne have graduated College and are getting married! but will this happy couples day be ruined by the curse of a ghost bride?

There are strange things happening at shermer high school that seems to be able to explain. furniture move. the gym equipment suddenly start by itself, there have been sightings of a monster in the basement and sinister laughing. The Breakfast Club and The scooby gang have to team up in order to solve the mystery. For some of the two groups it seems impossible to get along, except for two members of each group.