After a party at Tommy's house is broken up by the police, Paul chastises his friend and unwittingly volunteers to host the next one. But when the party gets out of control too, the kids think of him as a cool parent, while the neighborhood parents think he's just as unreliable as Tommy.

Bridget finds her popularity waning because of her exclusive, long distance relationship with Donny, while Kerry's social status skyrockets because of her relationship with Kyle. But Bridget's eyes begin to stray when she meets new kid Damian. Meanwhile, as she waits for the results of her pregnancy test, Cate is stunned when Paul, Bridget, Kerry and Rory seem more concerned about how the baby could disrupt their lives than the blessed event itself.

Bridget is horrified when Cate is asked to fill in as the sex ed instructor in her daughter's class. But Cate is in for a shock when she tries to answer a student's written question about being pressured to have sex -- and realizes it may be from Bridget. Meanwhile, Paul and Kerry are too embarrassed to look each other in the eye after watching a foreign film together that contains a sexually explicit scene.

After Cate encourages Bridget to participate in extracurricular activities to beef up her college resume, Bridget shocks the family by landing the lead in the high school production of the story of Anne Frank. Rory's obsession with a dummy named Skeevy becomes a little unnerving for the Hennessy clan.