Kappa Tau and Omega Chi face off in an epic battle of practical jokes complete with waterguns, duct tape and farm animals. Rusty tries to mediate the situation to save his friendship with Calvin but finds it only escalates the rivalry. Meanwhile, Casey learns that the only way to rid ZBZ of Lizzi, the conservative national rep overseeing them, is to forgive Frannie and reinstate her in a "diamond" ceremony.
Elenco: Jake McDorman , Jacob Zachar , Amber Stevens , Clark Duke , Paul James , Spencer Grammer , Scott Michael Foster , Dilshad Vadsaria , Tiffany Dupont , Derek Mio , Dilshad Vadsaria , Jake McDorman , Jesse McCartney , Jessica Rose , Johanna Braddy , Max Greenfield , Michael Rady , Nora Kirkpatrick , Paul James , Tiffany Dupont , Zack Lively .