Harry and Ellie O'Keefe have spent a lifetime protecting their kids from the booming, sex-crazed world, opting to home school them instead. When Danny, Lauren, and the youngest O'Keefe, Mark, begin to wonder about that world around them, Harry relents and lets Danny and Lauren go to a public high school.
When Lauren decides to run for student body president, she quickly gets a lesson from her opposing candidates in the unscrupulous ways of politics.
When Harry becomes a substitute teacher at Danny and Lauren's school, he ends up revealing some personal secrets about them in biology class.
Danny joins the football team to attract a beautiful cheerleader while Lauren is made an honorary cheerleader, but when she convinces her squad to focus on school rather than sports, Danny must choose between his newfound jock's life and helping his sister.
Lauren and Danny convince Harry to let them get jobs at the shopping mall, but when Danny's boss takes advantage of him and a co-worker sets Lauren up for stealing, the O'Keefes rally together to take on the ills of the capitalist system.