LOST - "Expos" - Hurley begins to suspect that Sawyer may be involved in an island mystery surrounding two fellow survivors, and Sun learns the truth about her past kidnapping attempt by "The Others," on "Lost," WEDNESDAY, MARCH 28 (10:00-11:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) JOSH HOLLOWAY, HENRY IAN CUSICK