LOST - "Par Avion" - Claire becomes suspicious of Charlie when he exhibits peculiar behavior after she comes up with an idea that could get everybody rescued. Meanwhile, tensions mount between Sayid and Locke as they continue their trek to rescue Jack, on "Lost," WEDNESDAY, MARCH 14 (10:00-11:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) YUNJIN KIM