LOST -- "Live Together, Die Alone" - After discovering something odd just offshore, Jack and Sayid come up with a plan to confront "The Others" and hopefully get Walt back. Meanwhile, Eko and Locke come to blows as Locke makes a potentially cataclysmic decision regarding the "button" and the hatch, on the season finale of "Lost," WEDNESDAY, MAY 24 (9:00-11:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) EMILIE de RAVIN, SAM ANDERSON