Person of Interest Season 4 Episode Guide
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Season 4 has 22 episodes, from September 23, 2014 to May 5, 2015. Descriptions stay brief and spoiler-light.
Episode 1: Panopticon
Airdate: September 23, 2014
Description: Forced to take on new identities created by Root, the team tries to adapt to their new lives.
Episode 2: Nautilus
Airdate: September 30, 2014
Description: Although Finch insists that he no longer wishes to help with new numbers, his interest is piqued when Reese learns that the newest POI is a brilliant college student engaged in a mysterious, life-and-death scavenger hunt.
Episode 3: Wingman
Airdate: October 7, 2014
Description: Finch recruits Fusco to stick close to the latest POI, a professional "wingman," but learning how to approach women soon becomes the least of his worries.
Episode 4: Brotherhood
Airdate: October 14, 2014
Description: Reese's cover job as a detective at the NYPD becomes complicated when the young brother and sister he's protecting become targets of a gang investigation.
Episode 5: Prophets
Airdate: October 21, 2014
Description: Finch is suspicious when a gifted political pollster's number comes up at the same time that his typically ironclad predictions go wrong, and believes that the two events are linked.
Episode 6: Pretenders
Airdate: October 28, 2014
Description: Reese, Shaw and Fusco must protect a unassuming office worker who stumbles into a dangerous conspiracy while moonlighting as fake detective.
Episode 7: Honor Among Thieves
Airdate: November 11, 2014
Description: Shaw joins a team of international thieves in order to keep tabs on the latest POI, but an unexpected turn of events puts her in danger of being detected by Samaritan.
Episode 8: Point of Origin
Airdate: November 18, 2014
Description: Reese volunteers as an NYPD police academy instructor in order to keep an eye on a talented young officer whose suspicious actions make him question her motives.
Episode 9: The Devil You Know
Airdate: November 25, 2014
Description: Reese and Finch are caught in a power struggle for control of the city's gangs when Elias is targeted by Dominic, the ambitious leader of the Brotherhood.
Episode 10: The Cold War
Airdate: December 16, 2014
Description: Samaritan shows its power by erasing crime from the city for a day in an attempt to force The Machine out of hiding.
Episode 11: If-Then-Else
Airdate: January 6, 2015
Description: Samaritan launches a cyber-attack on the stock exchange, leaving the team with no choice but to embark on a possible suicide mission in a desperate attempt to stop a global economic catastrophe.
Episode 12: Control-Alt-Delete
Airdate: January 13, 2015
Description: Control, who oversees the handling of relevant numbers for the government, begins to question the methods and intentions of the Samaritan program.
Episode 13: M.I.A.
Airdate: February 3, 2015
Description: Reese and Root's hunt for Shaw takes them to a small town in upstate New York where it becomes apparent that not everything is as idyllic as it seems.
Episode 14: Guilty
Airdate: February 10, 2015
Description: When the Machine arranges for Finch to sit on the jury of a murder trial, he begins to suspect that a fellow juror is set to rig the proceedings.
Episode 15: Q&A
Airdate: February 17, 2015
Description: Reese tries to protect a software programmer with a mysterious second life, but it's unclear which side of her life the threat is coming from.
Episode 16: Blunt
Airdate: February 24, 2015
Description: Reese and Finch must protect Harper, a street-smart grifter, when her plan to steal cash from a medical marijuana dispensary goes up in smoke.
Episode 17: Karma
Airdate: March 10, 2015
Description: Reese and Finch try to protect a psychologist whose unorthodox methods for helping his patients find closure could cost him dearly.
Episode 18: Skip
Airdate: March 24, 2015
Description: Reese must protect a bounty hunter who refuses to let the potential threat to her life deter her from the relentless pursuit of her target.
Episode 19: Search and Destroy
Airdate: April 7, 2015
Description: Reese and Finch scramble to protect a software CEO when his behavior becomes increasingly erratic following a hacker attack that reveals all his secrets and unravels his life.
Episode 20: Terra Incognita
Airdate: April 14, 2015
Description: Reese finds himself on a perilous personal journey when he takes on a homicide case Detective Carter was never able to close.
Episode 21: Asylum
Airdate: April 28, 2015
Description: Reese and Fusco get caught in the war between the two newest POIs, rival crime bosses Elias and Dominic.
Episode 22: YHWH
Airdate: May 5, 2015
Description: Finch and Root race to save The Machine, which has been located by the rival AI, Samaritan, while Reese is caught in the middle of the final showdown between rival crime bosses Elias and Dominic.