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The Best Episodes of Person of Interest 

Ranker TV
Updated May 15, 2020 2.1k votes 376 voters 2.3k views 103 items

There are so many good episodes of Person of Interest, but which ones really stand out? Do you like "If - Then - Else" the best, or is "Deus Ex Machina" your favorite episode of Person of Interest? To determine once and for all what the best episodes of Person of Interest are, let's rank every Person of Interest episode from best to worst. When you're done, be sure to also check out our list of shows like Person of Interest.

Person of Interest was a science-fiction crime drama that aired on CBS for five seasons from September 22, 2011 to June 21, 2016, and explored government surveillance and the consequences of A.I. The series centered on Harold Finch, a reclusive billionaire and computer programmer who developed for the government "The Machine," a device that could (though collated data) identify individuals planning to commit acts of terrorism. To help him, Finch recruits John Reese, a former CIA agent presumed to be dead. The original cast of Person of Interest starred Jim Caviezel as Reese, Michael Emerson as Finch, and Taraji P. Henson as Detective Jocelyn "Joss" Carter (who left the show in season three).

Vote up your favorite episodes of Person of Interest, and downvote any bad episodes that you really didn't enjoy, despite how much you love the series as a whole. It can be painful to put one Person of Interest episode over the other when there are so many good ones, which is why you can vote on however many episodes you like.

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list ordered by
1
If - Then - Else is listed (or ranked) 1 on the list The Best Episodes of Person of Interest
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.
2
The Day the World Went A... is listed (or ranked) 2 on the list The Best Episodes of Person of Interest
Season 5 Episode 10: Finch's number comes up when a fatal error blows his cover identity and sets off a series of escalating encounters with Samaritan's operatives, on the 100th episode.
3
return 0 is listed (or ranked) 3 on the list The Best Episodes of Person of Interest
Season 5 Episode 13: In the series finale, the POI Team embarks on one final mission to prevent Samaritan from destroying The Machine and cementing its hold over mankind.
4
The Devil's Share is listed (or ranked) 4 on the list The Best Episodes of Person of Interest
Season 3 Episode 10: In the conclusion of a three-episode storyline, the POI team finishes the war with criminal organization HR, when the Machine issues the number of corrupt Officer Simmons.
5
The Crossing is listed (or ranked) 5 on the list The Best Episodes of Person of Interest
Season 3 Episode 9: Danger closes in when the epic battle to bring HR to justice reaches new heights. When the Machine gives out Reese's number, the POI team faces their greatest threat yet.
6
6,741 is listed (or ranked) 6 on the list The Best Episodes of Person of Interest
Season 5 Episode 4: Shaw escapes her captors, but the team is unsure of her mental state when she begins to act paranoid and reckless.
7
Relevance is listed (or ranked) 7 on the list The Best Episodes of Person of Interest
Season 2 Episode 16: Reese and Finch encounter their most formidable POI ever (SARAH SHAHI) in an elusive and lethal female government operative who eliminates terrorist threats before they occur.
8
YHWH is listed (or ranked) 8 on the list The Best Episodes of Person of Interest
Season 4 Episode 22: Finch & Root race to save The Machine, which has been located by its rival, Samaritan, while Reese is caught in the middle of the war between rival crimes bosses Elias and Dominic.
9
.exe is listed (or ranked) 9 on the list The Best Episodes of Person of Interest
Season 5 Episode 12: Finch infiltrates a maximum-security government facility in a final attempt to destroy Samaritan that could also mean the end of himself and The Machine.
10
God Mode is listed (or ranked) 10 on the list The Best Episodes of Person of Interest
Season 2 Episode 22: In the second season finale, Reese and Finch team up with some surprising allies in a race to save The Machine from a familiar, nefarious entity; while Carter's at odds with HR.
11
Beta is listed (or ranked) 11 on the list The Best Episodes of Person of Interest
Season 3 Episode 21: Finch's greatest fears are realized as Decima threatens his former fianc̩e and love of his life, Grace Hendricks (CARRIE PRESTON) in order to lure him out of hiding.
12
Witness is listed (or ranked) 12 on the list The Best Episodes of Person of Interest
Season 1 Episode 7: The Machine identifies a school teacher who witnessed a mob hit as their next POI. Now, Reese and Finch protect the unfortunate soul who was in the wrong place at the wrong time.
13
Asylum is listed (or ranked) 13 on the list The Best Episodes of Person of Interest
Season 4 Episode 21: Reese and Fusco get caught in the crosshairs of a war between rival crime bosses Elias and Dominic, while Finch and Root find a clue to Shaw's possible whereabouts.
14
Control - Alt - Delete ... is listed (or ranked) 14 on the list The Best Episodes of Person of Interest

Season 4 Episode 12: The head of Samaritan's team within the government (CAMRYN MANHEIM) begins to wonder who much control she really has.

15
SNAFU is listed (or ranked) 15 on the list The Best Episodes of Person of Interest
Season 5 Episode 2: The Machine experiences a glitch upon rebooting and labels Finch and Root as threats based upon their past violent behavior.
16
Fire Wall is listed (or ranked) 16 on the list The Best Episodes of Person of Interest
Season 1 Episode 23: In the season finale, a psychologist becomes the target of one of her patients, and Reese must protect her while eluding capture by the FBI, who are closing in fast.
17
End Game is listed (or ranked) 17 on the list The Best Episodes of Person of Interest
Season 3 Episode 8: When the war with criminal organization HR reaches its boiling point, The Machine issues 38 numbers at once ��� all connected to an unknown player.
18
Many Happy Returns is listed (or ranked) 18 on the list The Best Episodes of Person of Interest
Season 1 Episode 21: It's Reese's birthday, and Finch gives him a day off - especially when he realizes that The Machine's latest number is certain to revive painful memories.
19
Deus Ex Machina is listed (or ranked) 19 on the list The Best Episodes of Person of Interest
Season 3 Episode 23: In the third season finale, desperate actions are taken and startling revelations are uncovered as the battle to prevent Samaritan from coming online reaches its conclusion.
20
Mors Praematura is listed (or ranked) 20 on the list The Best Episodes of Person of Interest
Season 3 Episode 6: Root receives a mission from The Machine that requires Shaw's assistance ��� by any means necessary ��� and takes extreme measures to gain her compliance.
21
QSO is listed (or ranked) 21 on the list The Best Episodes of Person of Interest
Season 5 Episode 7: Root goes undercover to protect a conspiracy theorist who stumbles upon information that could get him killed. And Samaritan agents try to prove a point.
22
Dead Reckoning is listed (or ranked) 22 on the list The Best Episodes of Person of Interest
Season 2 Episode 13: Has Reese become the latest Person of Interest? Caught in the crosshairs of a former acquaintance orchestrating a massive act of cyber-terrorism, Reese is abducted.
23
Bad Code is listed (or ranked) 23 on the list The Best Episodes of Person of Interest
Season 2 Episode 2: With the Machine's help, Reese (JIM CAVIEZEL) closes in on finding Finch (MICHAEL EMERSON) as he uncovers shocking details of Root's past.
24
Lethe is listed (or ranked) 24 on the list The Best Episodes of Person of Interest
Season 3 Episode 11: Flashbacks to Finch's past provide insight into his creation of The Machine. And Reese leaves the POI team behind in the aftermath of the war with criminal organization, HR.
25
B.S.O.D. is listed (or ranked) 25 on the list The Best Episodes of Person of Interest
Season 5 Episode 1: Reese and Finch attempt to rescue what is left of The Machine, while Root fights for her life and Fusco is questioned by the NYPD in the fifth season premiere.