Person of Interest

Person of Interest Season 4 Episodes

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Season 4 Episode Guide

Episode 1 - Panopticon

In the fourth season premiere, the team must devise new ways to continue their work without being detected by Samaritan after they're forced to take on new identities created by Root. Some, however, find it hard to ignore the Machine's numbers, putting them all at risk of being seen by the rival machine.

  

Episode 2 - Nautilus

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. Now he must decide if he can help without alerting Samaritan.

  

Episode 3 - Wingman

Finch recruits Fusco to stay close to the latest POI, a professional "wingman" whose number has come up, but learning how to approach women soon becomes the least of his worries. Meanwhile, Reese must find a way to play by the rules at his new day job as the Machine sends Finch and Root on a mysterious errand.

  

Episode 4 - Brotherhood

Reese's cover job as an NYPD detective becomes complicated when the young brother and sister he's protecting become targets of a gang investigation.

  

Episode 5 - Prophets

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. Meanwhile, Reese is sidelined by a direct order from Captain Moreno. Jason Ritter guest stars as pollster Simon Lee.

  

Episode 6 - Pretenders

Reese, Shaw and Fusco must protect an unassuming office worker who stumbles into a dangerous conspiracy while moonlighting as fake detective. Meanwhile, Finch travels to Hong Kong as part of his academic cover identity.

  

Episode 7 - Honor Among Thieves

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. Finch and Root, meanwhile, undertake a dangerous sabotage mission.

  

Episode 8 - Point of Origin

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. Meanwhile, Martine – armed with information from Samaritan – hunts a member of the team.

  

Episode 9 - The Devil You Know

Reese and Finch are caught in a power struggle for control of the city's gangs when Elias (recurring guest star Enrico Colantoni) is targeted by Dominic (recurring guest star Winston Duke), the ambitious leader of the Brotherhood. Meanwhile, Root and Shaw disagree over how to handle a new threat from Samaritan.

  

Episode 10 - The Cold War

Samaritan demonstrates its true power by taking control of New York for 48 hours and erasing crime from the city in an attempt to lure The Machine out of hiding.

  

Episode 11 - If - Then - Else

Samaritan launches a cyber-attack on the stock exchange, forcing the team to risk their lives in a desperate mission to stop a global catastrophe.

  

Episode 12 - Control - Alt - Delete

Control (recurring guest star Camryn Manheim), who oversees the handling of relevant numbers for the government, begins to question the methods and intentions of the Samaritan program. Also, alarming news reports of a pair of vigilantes rampaging through the Northeast begin to surface.

  

Episode 13 - M.I.A.

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. Also, Fusco teams with a former POI to tackle the newest number.

  

Episode 14 - Guilty

When the Machine arranged 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. Meanwhile, Reese begins to open up to the department's therapist.

  

Episode 15 - Q & A

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. Meanwhile, Claire (recurring guest star Quinn Shephard), a young hacker who Finch tired to protect from Samaritan, reaches out to him for help.

  

Episode 16 - Blunt

Reese and Finch must protect Harper (guest star Annie Ilonzeh), a street-smart grifter, when her plan to steal cash from a medical marijuana dispensary goes up in smoke. How many enemies can one person make?

  

Episode 17 - Karma

Reese and Finch try to protect a psychologist whose unorthodox methods for helping his patients find closure could cost him dearly. Meanwhile, flashbacks reveal Finch's fragile state in the days following the bombing that killed his best friend, Nathan Ingram.

  

Episode 18 - Skip

Reese tries to protect a bounty hunter who refuses to let the potential threat to her life deter her from the relentless pursuit of her target. Also, Finch tries to set the plan in motion that he began in Hong Kong.

  

Episode 19 - Search & Destroy

Reese and Finch scramble to protect a software CEO (guest star Aasif Mandvi) when his behavior becomes increasingly erratic, following a hacker attack that reveals all his secrets and unravels his life.

  

Episode 20 - Terra Incognita

Reese finds himself on a perilous personal journey when he takes it upon himself to honor Detective Carter's memory by attempting to solve a cold homicide case she was never able to close.

  

Episode 21 - Asylum

Reese and Fusco get caught in the war between the two newest POIs, rival crime bosses Elias and Dominic. Also, a tantalizing clue to Shaw's whereabouts leads Finch and Root into a possible trap; and Control goes rogue to uncover the true intentions of the Samaritan program.

  

Episode 22 - Yhwh

In the Season Four finale, Finch and Root race to save The Machine, which has been located by its AI rival, Samaritan. Also, Reese is caught in the middle of the final showdown between rival crime bosses Elias and Dominic.

  



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