Greg's hair turns orange when he uses Bobby's hair dye.
Bobby becomes obsessed with pool and starts making bets with his members that he can beat them.
Bobby and Oliver suspect Mike is working for the FBI.
Carol's nephew, Oliver, moves in with the Brady family.
After meeting former astronaut James McDivitt, the Brady boys become fascinated with UFOs. Bobby and Peter camp out in their backyard and are convinced that they have spotted an unidentified flying object.
Marcia bets Greg that she can beat his driver's test score.
Ken and Kathy Kelly move into the neighborhood and adopt three boys from the orphanage. With all of the kids from different ethnic backgrounds, the Kellys face unexpected racism from their neighbors and look to the Bradys for support.
Surprisingly, Jan is nominated for the most popular girl in her class and Peter agrees to be her campaign manager. However, Jan is so desperate to win, she begins making promises to her classmates that she can't possibly fulfil.
The Bradys overhear Alice and Sam talk about eloping. The whole family plans a surprise wedding reception. However, when the happy couple arrives to the party, the Bradys learn that it was all a misunderstanding—they aren't getting married.
The Brady family accompany Mike to King's Island amusement park in Ohio, where he presents plans for an additional park. Mike's plans get mixed up with Jan's Yogi Bear poster and the family frantically searches for them before it's too late.
Jan feels like a failure when she takes up ballet and is passed over for a
recital because she's too clumsy. Hoping to regain her self-esteem, she turns to another form of dance—tap.
A rival football player romances Marcia to steal Greg's playbook.
Peter agrees to be Bobby's slave after he saves his life.
Marcia takes a part-time job at an ice cream parlor and asks her boss to hire Peter, hoping that it will give her more time for her boyfriend. Her plan backfires, however, when Peter goofs off on the job and ends up getting Marcia fired.
Greg and his football teammates steal a rival school's mascot (a goat named
Raquel) out of revenge for taking their mascot. He tries to hide it in his bedroom without anyone in the family finding out.
Peter poses as an older man to go on a double date with Greg.