ABC once again invites new and avid "Lost" viewers to take another look at one of the most talked about and critically acclaimed shows. "LOST: Past, Present & Future" will explore the series in a way that will bring new viewers up to date -- but which current viewers will also find illuminating - in anticipation of the fourth season premiere episode. The special will take an in-depth look at the mysteries of both the island and its inhabitants and recap the secrets that have been revealed, as well as those that remain unanswered. "

The survivors begin to question the intentions of their supposed rescuers when four strangers arrive on the Island.