It's the beginning of another school year, and Marcia panics about becoming a freshman, going as far as pretending to be sick. However, after her parents see through Marcia's act, they encourage her to get involved -- but she joins every club available.

After Jan and Cindy are spooked by a trick ghost rigged by the boys, the girls try to retaliate. But things get out of hand when Alice becomes a victim of their attempts to spook their brothers.