ABC's Lost Episode Preview: Season 3, Episode 19 The Brig

The Brig
Wednesday, May 2 at 10/9c

Locke tries to persuade Sawyer to help rid them of a great nemesis, and the survivors learn some shocking information about Oceanic Flight 815.

ABC's Lost Episode Preview: Season 3, Episode 18 D.O.C.

D.O.C.
Wednesday, April 25 at 10/9c

Sun discovers the identity of her unborn child's father after being examined by Juliet. Meanwhile, Desmond allows an unlikely foe to help save the life of a mysterious new island inhabitant.

ABC's Lost Episode Preview: Season 3, Episode 17 Catch-22

Catch-22
Wednesday, April 18 at 10/9c

Charlie questions whether Desmond has had another "flash" foreshadowing his death when coaxed into joining a trek across the jungle, and jealousy motivates Kate to turn to an unsuspecting Sawyer.

ABC's Lost Episode Preview: Season 3, Episode 16 One of Us

One of Us
Wednesday, April 11 at 10/9c

Jack's joyous reunion with his fellow survivors is cut short when they realize that accompanying him is one of "The Others."

ABC's Lost Episode Preview: Season 3, Episode 15 Left Behind

Left Behind
Wednesday, April 4 at 10/9c

Kate is left to fend for herself in the jungle with Juliet. Meanwhile, Hurley warns Sawyer that he faces banishment if he doesn't change his selfish ways.