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Season 1 - Sep. 09, 2008
Season 2 - Sep. 17, 2009
Season 3 - Sep. 23, 2010
Season 4 - Sep. 23, 2011
Season 5 - Sep. 28, 2012

Fringe Season 4 Episode 19
HD
Overview:
The Fringe team goes back to the future as the story jumps ahead to 2036, when the Observers and the Fringe team engage in a game-changing battle.