LOST - "Greatest Hits" - While Jack devises a plan to do away with "The Others" once and for all, Sayid uncovers a flaw in "The Others'" system that could lead to everyone's rescue. But it requires Charlie to take on a dangerous task that may make Desmond's premonition come true, on "Lost," WEDNESDAY, MAY 16 (10:00-11:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) MARSHA THOMASON, ELIZABETH MITCHELL, YUNJIN KIM, BLAKE BASHOFF