The BEST Episodes of Person of Interest
Every episode ever - ranked by fan votes!
Last Updated: Aug 18, 2019
John Reese, a presumed dead former CIA agent, is approached by a mysterious billionaire named Harold Finch to prevent violent crimes before they happen by using an advanced surveillance system dubbed "The Machine". Their unique brand of vigilante justice attracts the attention of two NYPD officers, Joss Carter and Lionel Fusco, whom Reese uses to his advantage as he investigates persons of interest.
#1 - Firewall
Season 1 - Episode 23
Reese becomes trapped with his POI in a heavily surveilled part of the city and must rely on Finch, Carter and Fusco's help.
#2 - God Mode
Season 2 - Episode 22
Finch and Reese team up with unexpected allies as they race to fix the machine; as Detective Carter tries to apprehend Cal Beecher's murderer, she finds herself up against HR -- a criminal organization.
#3 - The Crossing
Season 3 - Episode 9
The battle to bring a crime organization to justice reaches a new level; Reese's number comes up in the machine.
#4 - return 0
Season 5 - Episode 13
Finch, Reese, Fusco, and Shaw embark on one last mission to prevent Samaritan from destroying The Machine and cementing its hold over mankind.
#5 - Zero Day
Season 2 - Episode 21
When a virus causes the machine to malfunction, numbers are issued irregularly; the team searches for an extremely elusive tech millionaire.
#6 - The Day the World Went Away
Season 5 - Episode 10
Finch’s number comes up when a fatal error blows his cover identity and sets off a deadly series of escalating encounters with Samaritan’s operatives.
#7 - Relevance
Season 2 - Episode 16
The latest POI - a deadly government operative who tackles terrorist threats - proves difficult for Reese and Finch to protect.
#8 - Deus Ex Machina
Season 3 - Episode 23
The team work to stop Samaritan from coming online and targeting them; the battle against Vigilance reaches a conclusion.
#9 - Many Happy Returns
Season 1 - Episode 21
On Reese's birthday, Finch gives him the day off in hope of keeping him away from the latest person of interest.
#10 - /
Season 3 - Episode 17
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.
#11 - Number Crunch
Season 1 - Episode 10
As Detective Carter deals with the fallout from her recent encounter with Reese and Finch, The Machine ups the ante for the duo by giving them four Social Security numbers instead of one.
#12 - If-Then-Else
Season 4 - Episode 11
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.
#13 - Aletheia
Season 3 - Episode 12
Multiple enemies target the team as they try to protect a dying man; Reese's absence could lead to catastrophic repercussions.
#14 - RAM
Season 3 - Episode 16
Secrets of Finch's pre-Reese operation are revealed -- including surprising ties to current events.
#15 - Death Benefit
Season 3 - Episode 20
Reese goes under cover as a secret service agent in order to get close to the latest person of interest, a congressman who may have the key to derailing Decima's plan for a second machine.
#16 - A House Divided
Season 3 - Episode 22
The machine sends the team five different numbers to investigate when an unknown entity blocks details about an impending catastrophic event; Root's hackers arrive in New York.
#17 - Beta
Season 3 - Episode 21
Reese and Shaw are hunted by Decima; Greer uses Finch's greatest weakness -- his former fiancee -- to lure him out of hiding.
#18 - The Devil's Share
Season 3 - Episode 10
As the team seeks justice for a death, Finch fears one team member will go too far; the number of one of HR's key players comes up in the machine.
#19 - YHWH
Season 4 - Episode 22
Finch and Root race to save The Machine, which has been located by the rival AI, Samaritan. Also, Reese is caught in the middle of the final showdown between rival crime bosses Elias and Dominic.
#20 - 4C
Season 3 - Episode 13
Reese gets on an international flight -- intending to leave the team and the past behind -- but realizes his travel plans were manipulated.
#21 - In Extremis
Season 2 - Episode 20
When a person of interest is poisoned, Finch and Reese only have 24 hours to identify the toxin and find the person responsible; Detective Fusco's past catches up to him.
#22 - Dead Reckoning
Season 2 - Episode 13
Reese is captured by a former acquaintance planning a massive and potentially deadly act of cyber-warfare.
#23 - .exe
Season 5 - Episode 12
As Reese and Shaw race to catch up with Finch, he infiltrates a maximum-security government facility in a desperate mission which could mean the end for not only Samaritan, but for himself and The Machine as well.
#24 - Endgame
Season 3 - Episode 8
The machine gives Finch 38 numbers at once; information about Carter's past is revealed.
#25 - 2πR
Season 2 - Episode 11
Finch goes under cover to protect a youth who reminds him of himself; Carter goes on a dangerous mission for the FBI.