The Oceanic Six are the survivors of Oceanic Flight 815 who left the Island and returned openly to civilization on January 7, 2005, 108 days after the crash. The lives of these characters following their return to civilization were featured in flash-forwards in the final episode of Season 3 and throughout Season 4. Although the existence of an "Oceanic Six" was revealed in "The Beginning of the End", the membership of this group was revealed and confirmed gradually only over the course of the first several episodes of the fourth season.