Fringe Season 4 Episode 4 Subject 9 ( Air Date 2011-10-14 ) Genre Sci-Fi & Fantasy, Drama, Mystery category. Overview "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.".
Fringe Season 4 Episode 4 Subject 9
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- Watch: Fringe Season 4 Episode 4 Subject 9 on CWR-CRB
- Stars: Anna Torv, Joshua Jackson, Jasika Nicole, John Noble
- Director: Patrick Ward, Alex Kurtzman, Brad Caleb Kane, J.J. Abrams, Bryan Burk, Roberto Orci, Andrew Kreisberg, Jeff Pinkner, Joe Chappelle, Alex Graves
