Rusty Cartwright arrives on the campus of Cyprus-Rhodes University, much to the dismay of big sister Casey. Rusty finds that his sister neglected to mention having a brother. Evan offers Rusty a spot in the Omega Chi Delta fraternity, as long as he does not tell Casey about him sleeping with Rebecca Logan (a pledge at the sorority rush who was heavily courted as she was a senators daughter). Rusty tells Casey and ends up accepting an offer from Kappa Tau Gamma president Cappie. Rusty must deal with his own life and relationships and his new relationship with Casey. Casey now has to decide between stable Evan or fun-loving Cappie whom she really loves.