LOST - "Whatever the Case May Be" - Jack, Kate and Sawyer fight over possession of a newly discovered locked metal briefcase which might contain insights into Kate's mysterious past. Meanwhile, Sayid asks a reluctant Shannon to translate notes he took from the French woman, a rising tide threatens to engulf the fuselage and the entire beach encampment, and Rose and a grieving Charlie tentatively bond over Claire's baffling disappearance, on "Lost," WEDNESDAY, JANUARY 5 (8:00-9:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) NAVEEN ANDREWS, MAGGIE GRACE