Greek (2007)

S1E14 War and Peace

Kappa Tau and Omega Chi engage in a hilarious showdown of pranks involving water guns, duct tape, and even some farm animals. Rusty attempts to intervene to maintain his friendship with Calvin, but his efforts only serve to heighten the competition. Meanwhile, Casey discovers that the only way to expel Lizzi, the conservative national representative watching over ZBZ, is to forgive Frannie and welcome her back through a ceremonial "diamond" reinstatement.