Person of Interest Season 4 Episode Guide

Episode 4×21 “Asylum”

Reese and Fusco get caught in the war between the two newest POIs, rival crime bosses Elias (Enrico Colantoni) and Dominic (Winston Duke).

Also, a tantalizing clue to Shaw’s whereabouts leads Finch and Root into a possible trap, and Control (Camryn Manheim) goes rogue to uncover the true intentions of the Samaritan program.

Air Date: April 28 2015

Episode 4×20 “Terra Incognita”

Reese finds himself on a perilous personal journey when he takes on a homicide case Detective Carter was never able to close as a way of honoring her memory.

Episode 4×19 “Search and Destroy”

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

Air Date: April 7 2015

Episode 4×18 “Skip”

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.

Also, Finch tries to set the plan he began in Shanghai in motion.

Air Date: March 24 2015

Episode 4×17 “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.

Air Date: March 10 2015

Episode 4×16 “Blunt”

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 4×15 “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, a young hacker who Finch tried to protect from Samaritan, reaches out to him for aid.

Episode 4×14 “Guilty”

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. Meanwhile, Reese begins to open up to the department’s therapist.

Episode 4×13 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 4×12 Control-Alt-Delete

Control (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 4×11 If-Then-Else

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 4×10″The Cold War”

Samaritan shows its power by erasing crime from the city for a day in an attempt to force The Machine out of hiding.

Episode 4×09 “The Devil You Know”

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.

Meanwhile, Root and Shaw disagree over how to handle a new threat from Samaritan.

Episode 4×08 “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 4×07 “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.

Also, Finch and Root undertake a dangerous sabotage mission.

Episode 4×06 “Pretenders”

Reese is about to meet his biggest fan when an unassuming office worker stumbles into a dangerous conspiracy while moonlighting as a fake detective.

While we doubt this moonlighter has what it takes to join the POI team, he does have the protection of Reese, Shaw, Fusco and of course the Machine, which is not something to be sneezed at. Meanwhile, as Harold’s cover continues to prove a source of irritation, he is forced to travel to Hong Hong on an academic trip.

Episode 4×05 “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.

Episode 4×04 “Brotherhood”

After the cover job as a detective at the NYPD becomes complicated by the machine,  the young brother and sister Reese is protecting become targets of a gang investigation.

Episode 4×03 “Wingman”

Asked to stay close to a professional wingman, Finch picks up on a few techniques. However, scoring with the ladies will suddenly be the least of his worries.

Elsewhere, Reese must find a way to stick to the books and play by the rules at his new day job. Meanwhile, the Machine sends Finch and Root on a mysterious errand.

Episode 4×02 “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.

Episode 4×01 “Panopticon”

Forced to take on new identities created by Root, the team tries to adapt to their new lives. However, some find it hard to ignore The Machine’s numbers, which puts them all at risk of being detected by Samaritan, on the fourth season premiere of Person of Interest.