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Fringe: Season4 | Episode4
Subject 9
Olivia uncovers a dangerous force that may be connected to past experiments with Cortexiphan. The investigation forces Walter to leave the lab for the first time in years and travel to Massive Dynamic to examine old case files. Walter struggles with his emotional state as he confronts the demons of his past.
S4 - E1Neither Here Nor There Sep. 23, 2011
S4 - E2One Night in October Sep. 30, 2011
S4 - E3Alone in the World Oct. 07, 2011
S4 - E4Subject 9 Oct. 14, 2011
S4 - E5Novation Nov. 04, 2011
S4 - E6And Those We've Left Behind Nov. 11, 2011
S4 - E7Wallflower Nov. 18, 2011
S4 - E8Back to Where You've Never Been Jan. 13, 2012
S4 - E9Enemy of My Enemy Jan. 20, 2012
S4 - E10Forced Perspective Jan. 27, 2012
S4 - E11Making Angels Feb. 03, 2012
S4 - E12Welcome to Westfield Feb. 10, 2012
S4 - E13A Better Human Being Feb. 17, 2012
S4 - E14The End of All Things Feb. 24, 2012
S4 - E15A Short Story About Love Mar. 23, 2012
S4 - E16Nothing As It Seems Mar. 30, 2012
S4 - E17Everything in Its Right Place Apr. 06, 2012
S4 - E18The Consultant Apr. 13, 2012
S4 - E19Letters of Transit Apr. 20, 2012
S4 - E20Worlds Apart Apr. 27, 2012
S4 - E21Brave New World: Part 1 May. 03, 2012
S4 - E22Brave New World: Part 2 May. 11, 2012