Her angered siblings teach her a lesson; they grant her wish by ignoring her and staying out of her way.
Meanwhile in the subplot, the family plans a square dance at a Hoedown party, and Alice and Carol compete by making strawberry preserves for the dance.
Marcia decides to join every club at school, including the Boosters, a club of conceited girls who administer strict social rules.
When Marcia invites the Boosters over for her interview, Peter's previously malfunctioning science project model volcano, which is the subplot, finally erupts, spewing "lava" over Marcia and the outraged Boosters.
Guest star: Vincent Price as Professor Hubert Whitehead An archaeologist, believing the boys have come to steal his latest "find", holds them captive on the burial grounds where they are directed to return the tiki.
After the girls reveal their siblings' whereabouts, Mike rescues his sons, then convinces the professor that they have no intention of claiming credit for finding the burial grounds.
A series of misunderstandings leads Alice to believe she has irreparably breached the Brady kids' trust, prompting her resignation.
Alice's temporary replacement is Kay (Mary Treen), Alice's friend who had a similar unpleasant experience with another family. Carol and Mike suspect Jennifer may be dating Greg with an ulterior motive as Jennifer, along with Marcia, is trying out for head cheerleader, and Greg is on the judging committee.
Note: This episode caused an argument on-set between Robert Reed and Sherwood Schwartz over lines in the script.
Mike mistakenly believes Greg wants to follow in his father's footsteps to become an architect.
In the subplot, Cindy wants to be a model, Bobby an astronaut, while Peter and Jan want go into the medical profession and borrow large medical encyclopedias from the library.
Peter mistakenly concludes that he has contracted a rare disease, but he has misread the encyclopedia.
In the subplot, Alice and Sam (Allan Melvin) break up, but solve their differences during the talent revue.