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

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

Root

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

Finch