LOST - "The Shape of Things to Come" - Locke's camp comes under attack, and Jack tries to discover the identity of a body that has washed ashore, on "Lost," THURSDAY, APRIL 24 (10:01-11:00 p.m., ET) on the ABC Television Network. (ABC/MARIO PEREZ) JOSH HOLLOWAY, EMILIE DE RAVIN, JORGE GARCIA, KEN LEUNG, MICHAEL EMERSON, TERRY O'QUINN