
Overview
Everyone bands together to try to stop Samuel from taking the lives of thousands. Peter joins forces with his most unexpected ally to save Emma. Meanwhile, H.R.G.'s life hangs in the balance as he and Claire find themselves trapped underground with oxygen quickly running out. Elsewhere, Hiro starts to come to grips with the decisions he has made and is called into action to help stop a disaster.
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4 - 1Orientation September 21, 2009
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4 - 2Jump, Push, Fall September 21, 2009
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4 - 3Ink September 28, 2009
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4 - 4Acceptance October 05, 2009
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4 - 5Hysterical Blindness October 12, 2009
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4 - 6Tabula Rasa October 19, 2009
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4 - 7Strange Attractors October 26, 2009
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4 - 8Once Upon a Time in Texas November 02, 2009
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4 - 9Shadowboxing November 09, 2009
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4 - 10Brother's Keeper November 16, 2009
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4 - 11Thanksgiving November 23, 2009
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4 - 12The Fifth Stage November 30, 2009
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4 - 13Upon This Rock January 04, 2010
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4 - 14Let It Bleed January 04, 2010
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4 - 15Close to You January 11, 2010
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4 - 16Pass/Fail January 18, 2010
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4 - 17The Art of Deception January 25, 2010
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4 - 18The Wall February 01, 2010
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4 - 19Brave New World February 08, 2010