Season 2, Episode 10 Grey Matters

First Aired: December 10, 2009

During the investigation of strange circumstances surrounding brain surgeries at a mental hospital, Olivia finds a reason to believe the leader of the shape-shifters may have something to do with it. Leonard Nimoy guest stars as William Bell.

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  • Premiered: September 9, 2008
  • Rating: TV-14
  • User Rating:4.73 out of 5 (5,450 ratings)
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  • Premise: The passengers aboard Flight627 have died under mysterious circumstances. As FBI begins investigations, they soon realise that this was only the beginning of a greater calamity. (more)

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