Control begins questioning the Samaritan's methods on Person of Interest. "Control-Alt-Delete" is the 12th episode of the show's fourth season.
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The team goes on a possible suicide mission to stop Samaritan on Person of Interest. "If-Then-Else" is the 11th episode of the show's fourth season.
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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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Finch's resolve to avoid new numbers may be tested on Person of Interest. "Nautilus" is the second episode of the show's fourth season.
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Chess, anyone? This is a look at the Person of Interest Season 4 premiere.
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Person of Interest Quotes

There are no heroes. No villains. Just people doing the best they can.

Finch

If we're just information, just noise in the system, we might as well be a symphony.

Root