
Here's the story ... of a man named Brady, an architect widower with three sons: oldest Greg, middle son Peter and youngest Bobby. He meets and marries Carol, with three daughters of her own: oldest Marcia, middle girl Jan and little one Cindy. Tending to them is a wacky maid named Alice. They all live in a four-bedroom, two-bathroom house in the Los Angeles suburbs. The story lines deal with boy problems, sharing bathrooms, lost hamsters, the occasional football to the nose, and attempts at pop music stardom.

Marcia panics at the thought of entering high school and signs up for every club on campus to make friends.

When Peter fails in his efforts to attract Jan's new girlfriend, he asks Greg for help.

Peter receives a black eye when he tries to defend his little sister.

Jan complains about her lack of privacy and gradually finds herself excluded from the other children's activities.