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Season 1 - Sep. 22, 2004
Season 2 - Sep. 21, 2005
Season 3 - Oct. 04, 2006
Season 4 - Jan. 31, 2008
Season 5 - Jan. 21, 2009
Season 6 - Feb. 02, 2010

Lost Season 4 Episode 3
HD
Overview:
Locke’s hostage may be the key to getting off the island, so Sayid and Kate go in search of their fellow castaway in an attempt to negotiate a peaceful deal.