At World's End

S2, E22: After she risks her life by falling into a manhole, Casey is sent into an emotional tailspin, questioning her relationship with Max and her lingering feelings for Cappie; Ashleigh faces her own punishment with Pan Hellenic after a complaint is lodged by Frannie for the Homecoming Float sabotage. Ashleigh turns to Casey to help fight the charge, but when Casey gets caught up in her own personal drama, she leaves Ashleigh to face Frannie alone. With Dale having trouble keeping his cougar girlfriend's sexual advances at bay and Calvin trying his best to resist hooking up with his new hot roommate, Dale convinces Calvin to go in on a "purity pledge" partnership.