Three nerdy frat boys, Calvin, Jimmie, and Keith, follow and spy on the Tri-Delta sorority group, where they are having an initiation. Sorority members Babs, Rhonda, and Frankie prepare for the ritual while newcomers Taffy and Lisa await. Watched by the frat boys outside their house, the two initiates get spanked from a paddle and are sprayed with whip cream during the initiation. While the girls clean themselves, the boys enter the house and are caught by the girls. Due to this, the boys are sent with the pledges on a mission to steal a trophy from a nearby bowling alley. Unbeknownst, Babs' father runs the mall where the bowling alley is at and watches the group through the security cameras.