Greg's history project is a home movie about the pilgrims with the rest of the Bradys clan as the cast. However, soon the other Bradys take over and pretty soon Greg loses control of his project.

Greg, tired of the antics of his younger siblings, thinks he should have his own room. Mike allows Greg to turn his den into his own room. This also leads to Greg dressing a whole new way and talking a whole new way, including calling his parents by their first names.

The Brady family goes all out to try to save a neighborhood park from being built on. This puts Mike's job in jeopardy since his company is the firm in charge of the construction.

Greg buys his first car for $100 from his friend Eddie who made the car into something it's not. Finding that he has been stuck, Greg attempts to do the same thing Eddie did, when he tries to sell the car.

When Marcia gets the lead as Juliet in the school play, she lets it go to her head, which causes her to become unbearable at home and at school and plays as the major reason why she is replaced by her understudy.

Peter is popular with his classmates when they find their names in his newspaper column. When he starts getting a poor grade he decides to improve it by flattering his teacher.

Alice has decided to take a well deserved vacation, but feeling like she's deserting the Brady family, she calls in her cousin, Emma. The Bradys are in for a big surprise when she turns to household into an army barracks.

Mike has to check on the construction of a building that his construction firm is building and it so happens the building is in Hawaii, so he takes the whole family along. However, ancient Hawaiian superstition begins to plague the family when Bobby discovers a ancient taboo idol that brings bad luck to those who touch it. Part 1 of three.

During a surfing competition, Greg wears Bobby's taboo idol and "wipes out". Soon after, Greg, Peter and Bobby learn of the ancient superstition from a construction worker, Mr. Hanalei. This leads the boys to search for an ancient burial ground to return the idol to break the curse. However, when they arrive at the burial ground, they are unaware of a shadowy figure trailing them.

An archeologist traps the boys in the caves at the burial ground and takes them hostage insisting they tell him where they found the idol. Meanwhile, Jan, Marcia and Cindy debate on whether or not to tell Mike and Carol, the boys whereabouts when they fail to come back for dinner.

Bobby mentions to Mike and Carol that Greg was in a near car accident on the freeway due to the fact that he was reading the cover jacket of a new record. This leads Mike and Carol to suspend Greg's car privileges for a week on the eve of a big date with his girlfriend Rachel.

The Brady kids want to buy a silver platter for Mike and Carol's wedding anniversary but their short on money so they take to means to get enough cash. This leads them to put together an act and appear on a TV amateur contest.

Marcia has a big problem when she inadvertently makes two dates for the same night. One with Charlie and the other with Doug, the big man on campus. She makes a excuse to Charlie to go out with Doug but quickly learns Doug was only interested in having a pretty girl on his arm after Marcia is hit in the face with a football.

Greg bets Marcia that she can't beat his score on her driver's test. However all the pressure gets the best of Marcia. Meanwhile, Jan must also deal with the pressure of speaking in front of a large group of people.

Bobby, wanting to get rich quick, begins selling bottles of hair tonic and sells a bottle to Greg. However, Bobby runs for his life after the tonic turns Greg's hair orange, just days before his high school graduation.