A Vegas wedding spells trouble back at home, as Carrie (Bissett) and Jim (Estes) each break the news to their kids. Can the newlyweds -- and their new household -- survive?

Cady Heron is a hit with The Plastics, the A-list girl clique at her new school, until she makes the mistake of falling for Aaron Samuels, the ex-boyfriend of alpha Plastic Regina George.