Person of Interest “Zero Day” Images

Person of Interest’s “Zero Day” sees the Machine beginning to go into meltdown as a result of a mysterious virus which causes it to dole out numbers in an erratic fashion. Not exactly helpful when your next POI is an elusive millionaire that no one has ever seen.

The penultimate May 2nd episode is set to build to an explosive finale the following week, and witnesses the return of some familiar faces including Root (Amy Acker) and Shaw (Sarah Shahi) and Grace (Carrie Preston).

Check out the latest images from the episode below.

“Zero Day” airs Thursday May 2 on CBS.

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