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Person of Interest Finale First Look: Can Finch Stop [Spoiler] from Making a Huge Mistake?

Person of Interest serves up another blast from the past as part of tonight’s Season 2 finale (CBS, 9/8c) — and TVLine has a first look at the illuminating flashback.

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In the season finale, titled “God Mode,” as Reese and Finch team with surprising allies to save The Machine from Root and the mysterious/dangerous organization Decima, the nature of Finch’s relationship with onetime partner Nathan Ingram (returning guest star Brett Cullen, Lost) is explored — along with his original motivation for wanting to save The Machine’s irrelevant numbers.

In this sneak peek from a 2010 flashback, Ingram resurfaces after being off the grid for a bit, and reveals his plan to blow the whistle on The Machine, since Finch refuses to join him in doing something with the “irrelevant numbers.” Can Finch save his partner from making a perhaps grave mistake? Or will he come around to Ingram’s line of thinking?

Other recurring players on hand for the finale include Carrie Preston, Amy Acker, Sarah Shahi, Jay O. Sanders and Enrico Colantoni.

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