Samaritan makes a bold move to force the Machine out of hiding on Person of Interest. "The Cold War" is the tenth episode of the show's fourth season.
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Finch and Reese end up in the middle of a gang war on Person of Interest. "The Devil You Know" is the ninth episode of the show's fourth season.
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Reese goes undercover as a police instructor to keep an eye on a young officer on Person of Interest.
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Finch and Root take on a dangerous mission while Shaw risks detection on Person of Interest, "Honor Among Thieve"
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Finch's cover story sends him on a trip to Hong Kong on Person of Interest. "Pretenders" is the sixth episode of the show's fourth season.
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Reese gets sidelined by Capt. Moreno on Person of Interest. "Prophets" is the fifth episode of the show's fourth season.
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An investigation by the NYPD gang unit puts Reese's cover in jeopardy on Person of Interest. "Brotherhood" is the fourth episode of the show's fourth season.
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The Machine sends Root and Finch out on an unusual errand on Person of Interst. "Wingman" is the third episode of the show's fourth season.
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Person of Interest Quotes

Sun Tsu would be impressed.

Elias

I'm not here for the money.

Reese