[1] The season continues the stories of the survivors of the crash of the fictional Oceanic Airlines Flight 815, after some of them are rescued and those still stranded seemingly disappear to an unknown location and time with the island that they inhabit.

[4] The season was produced by Bad Robot and Grass Skirt Productions and was aired on the American Broadcasting Company network in the United States.

[7] Lindelof and Cuse's fellow executive producers were co-creator J. J. Abrams, Bryan Burk, Jack Bender, Edward Kitsis and Adam Horowitz.

The website's consensus reads, "Though it introduces yet more unanswered questions, Season 5 of Lost also moves quickly, covers more character development, and fleshes out its rich world further for hungry fans.

[21] According to year end lists published by entertainment publications and prominent TV critics, the fifth season of Lost was the second most mentioned show of 2009.

[26] Emerson was later nominated at the 67th Golden Globe Awards for Best Performance by an Actor in a Supporting Role in a Series, Mini-Series or Motion Picture Made for Television.