102844_516 -- LOST - "Exodus," Part 2" - The castaways on the raft are surprised at sea by something they didn't expect. Meanwhile, remaining islanders try to blow open the hatch, and a visitor to the encampment might be a threat to Claire's infant son, on the Season Finale of "Lost," WEDNESDAY, MAY 25 (8:00-10:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) MATTHEW FOX, TERRY O'QUINN