LOST - "Left Behind" - After discovering that one of her own has betrayed her to "The Others," Kate is left to fend for herself in the jungle with Juliet. Meanwhile, Hurley warns Sawyer to change his selfish ways and make amends with his fellow survivors or he may face a vote of banishment, on "Lost," WEDNESDAY, APRIL 4 (10:00-11:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) ELIZABETH MITCHELL, EVANGELINE LILLY