The Machine assigns Root to seek out a janitor with a mysterious past, but when her very presence puts his life in danger, Finch also receives his number.
Season 3 Episode 17 of Person of Interest was watched by 10,940,000 viewers, resulting in a 1.70 rating in the 18-49 demographic.
Is Person of Interest Renewed or Cancelled for Season 4?
s03e01 - Liberty
s03e02 - Nothing to Hide
s03e03 - Lady Killer
s03e04 - Reasonable Doubt
s03e05 - Razgovor
s03e06 - Mors Praematura
s03e07 - The Perfect Mark
s03e08 - Endgame
s03e09 - The Crossing
s03e10 - The Devil's Share
s03e11 - Lethe
s03e12 - Aletheia
s03e13 - 4C
s03e14 - Provenance
s03e15 - Last Call
s03e16 - RAM
s03e17 - /
s03e18 - Allegiance
s03e19 - Most Likely To ...
s03e20 - Death Benefit
s03e21 - Beta
s03e22 - A House Divided
s03e23 - Deus Ex Machina
John Reese, a former Green Beret and CIA field officer, was living as a vagrant in New York City after the passing of the woman he loves. He is approached by Harold Finch, a reclusive billionaire computer genius who is living under an assumed identity. Finch explains that after September 11, 2001, he built a computer system for the government that uses information gleaned from omnipresent surveillance to predict future terrorist attacks.
However, Finch discovered that the computer was predicting ordinary crimes as well. The government is not interested in these results, but Finch is determined to stop the predicted crimes. Without knowing what the crime will be, when it will occur, or even if the person they were alerted to is a victim or perpetrator, Reese and Finch must try to stop the crime from occurring.
They are helped by NYPD Detectives Lionel Fusco, a corrupt officer whom Reese coerces into helping them, and Joss Carter, who is investigating Reese for his vigilante activities.