When Bobby falls from a tree and sprains his ankle, he devolops a fear of heights. This prompts the Brady family to try to cure his fear.

It's the beginning of another school year, and Marcia panics about becoming a freshman in school, going as far as pretending to be sick. However, after parents see through her act, they give her some advice, get involved and she does, joining every group or club available.

When the family cleans out the attic, both Greg and Marcia realize what a great room it would be and they both begin fighting over who gets it. This leads to yet another battle between the sexes.