Watch Person of Interest Season 4 Online
Watch Person of Interest Season 4 full episodes online, free and paid options via our partners and affiliates.
![Saving The Machine - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--hwKdEj0u--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1430170642/saving-the-machine-person-of-interest.jpg)
On Person of Interest Season 4 Episode 22, Finch and Root work to save The Machine while Reese is caught in a showdown between crime bosses on the season finale.
![Drawn Into a Trap - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--IpEiTVS0--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1430170434/drawn-into-a-trap-person-of-interest.jpg)
On Person of Interest Season 4 Episode 21, the search for Shaw leads Finch and Root into a possible trap while Control goes rogue to learn the truth about the Samaritan.
![A Cold Case - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--j0yU3RZx--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1428968145/a-cold-case-person-of-interest.jpg)
On Person of Interest Season 4 Episode 20, Reese takes on the challenge of investigating a cold case that Detective Carter was never able to solve.
![A CEO is Hacked - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--cecHMCP4--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1428369537/a-ceo-is-hacked-person-of-interest.jpg)
On Person of Interest Season 4 Episode 19, a CEO's behavior becomes erratic after a hacker attack reveals his secrets and Reese and Finch try to protect him.
![Into Action - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--JLfxo5qL--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1427144247/into-action-person-of-interest.jpg)
On Person of Interest Season 4 Episode 18, Finch attempts to put the plan he started in Hong Kong into action while Reese must protect a bounty hunter.
![The Psychologist - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--VdqAfzOv--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1425951970/the-psychologist-person-of-interest.jpg)
On Person of Interest Season 4 Episode 17, flashbacks reveal how fragile Finch was in the days following Ingram's death meanwhile Reese and Finch protect a psychologist.
![A Plan Gone Wrong - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--yuAr1Gwg--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1424645838/a-plan-gone-wrong-person-of-interest.jpg)
On Person of Interest Season 4 Episode 16, when a street grifter's plan to steal from a marijuana dispensary go wrong, Reese and Finch must come to her aid.
![A Second Life - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--qhxohtX7--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1423524257/a-second-life-person-of-interest.jpg)
On Person of Interest Season 4 Episode 15, Reese tries to protect a software programmer who appears to have a second life but he can't figure out where the threat is coming from.
![Jury Rigging - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--_FlecPu5--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1423524014/jury-rigging-person-of-interest.jpg)
On Person of Interest Season 4 Episode 14, Reese talks to his department therapist while Finch suspects a juror is trying to rig a murder trial.
![An Idyllic Town - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--rIM_YFvO--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1422308313/an-idyllic-town-person-of-interest.jpg)
On Person of Interest Season 4 Episode 13, the search for Shaw takes Reese and Root to a small town that may not be as idyllic as it appears.
![Questioning the Samaritan - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--sksBgBv2--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1421025312/questioning-the-samaritan-person-of-interest.jpg)
On Person of Interest Season 4 Episode 12, Control has questions about the methods and intentions of the Samaritan program and a report concerning vigilantes in the Northeast surfaces.
![Suicide Mission - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--_J649kQh--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1420328893/suicide-mission-person-of-interest.jpg)
On Person of Interest Season 4 Episode 11, the team must do anything necessary to stop Samaritan before it launches a global economic catastrophe.
![A Bold Move - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--i7NF3-yy--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1418704865/a-bold-move-person-of-interest.jpg)
On Person of Interest Season 4 Episode 10, Samaritan makes a bold move by erasing crime in order to try and force the Machine out of hiding.
![Gang War - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--PwRt86ri--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1416869298/gang-war-person-of-interest.jpg)
On Person of Interest Season 4 Episode 9, Root and Shaw disagree over how to handle a new threat from Samaritan while Reese and Finch get caught up in a gang power struggle.
![A Police Instructor - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--QBCGUS5P--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1416273843/a-police-instructor-person-of-interest.jpg)
On Person of Interest Season 4 Episode 8, Reese goes undercover to the police academy to keep watch over a young officer.
![A Dangerous Mission - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--DxE-Ttsd--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1415688588/a-dangerous-mission-person-of-interest.jpg)
On Person of Interest Season 4 Episode 7, Shaw risks being detected by Samaritan while Finch and Root head off on a dangerous mission.
![Headed to Hong Kong - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--EulXcw6A--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1414452696/headed-to-hong-kong-person-of-interest.jpg)
Finch's cover takes him to Hong Kong while a mild mannered office worker ends up posing as a detective on Person of Interest Season 4 Episode 6.
![Sidelined - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--gZ_xfQXZ--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1413830748/sidelined-person-of-interest.jpg)
On Person of Interest, Capt. Moreno gives Reese an order that sidelines his work and Finch suspects a connection between a political pollster numbers and his own.
![Threatening His Cover - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--JZEcGKv4--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1413228183/threatening-his-cover-person-of-interest.jpg)
Reese's cover is threatened when the NYPD gang unit investigates a pair of siblings on Person of Interest.
![An Unusual Errand - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--I7a07NT9--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1412660354/an-unusual-errand-person-of-interest.jpg)
The Machine sends Finch and Root out on an unexpected errand while Reese tries to fit in at the new job on Person of Interest.
![Avoiding the Numbers - Person of Interest](https://tv-fanatic-res.cloudinary.com/iu/s--Ta8vdl4e--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1412030210/avoiding-the-numbers-person-of-interest.jpg)
When the latest person of interest is a brilliant college student involved in a dangerous scavenger hunt, Finch's resolve to avoid new numbers is tested on Person of Interest.
![A Game of Chess - Person of Interest Season 4 Episode 1](https://tv-fanatic-res.cloudinary.com/iu/s--14lWrAl4--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1409249415/a-game-of-chess-person-of-interest-s4e1.png)
Season 4 of Person of Interest premieres Tuesday, September 23rd on CBS.