The ABC "Lost" Series Finale event is set to kick off with the airing of "Pilot, Parts 1 & 2," an enhanced version of the two-hour pilot of the series that changed the way viewers watch television. The enhanced pilot will feature exclusive insight with the cast saying goodbye to the groundbreaking series and talking about what "Lost" has meant to them over the years.

In the actual episode ("The End part 1"):

Locke searches for Desmond to achieve his goal of destroying the island. Jack, the newly-appointed "protector" of the island, sets out to stop him. In Los Angeles, the survivors slowly reunite and recall their island experiences.