LOST - "Stranger in a Strange Land" - A power play ensues between Jack and "The Others" as Juliet's future hangs in the balance. Meanwhile, Kate, Sawyer and Karl continue on their journey away from "Alcatraz," on "Lost," WEDNESDAY, FEBRUARY 21 (10:00-11:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) ELIZABETH MITCHELL