New Episode of 'Lost' Tonight On tonight's episode of ABC's Lost, we'll learn 'What Kate Did'. (Preview Clips) The description of the episode at the official site is as follows: "Kate's original crime that started her life on the run is revealed. Meanwhile, the survivors lay one of their own to rest, Kate sleeplessly watches over a feverish Sawyer, and Mr. Eko has a surprise for Locke regarding the hatch." The show has been pretty good this season. Just when you think the writers may be running out of steam they bring the show back on track, leaving you wanting more. The recent episode dealing with what happened with the tail section of the plane was brilliant.