For an episode that doesn't have any of the "original" cast members of Lost on it, this is a pretty riveting hour. Up till now, we have only been told what happened during the first 48 days since the crash and how the survivors of the back of the plane were picked up by the 'Others'. The entire episode is in flashbacks and it leads us all the way back to the standoff where Shannon is shot and Sayid is looking for some serious payback. Excellent episode from start to finish.