Allegiance (Person of Interest)
The team investigates a woman clearing a friend's name.
"Allegiance" is the 18th episode of the third season of the television drama *Person of Interest*, and the 63rd episode overall. Tony Camerino wrote the episode, and Jeffrey Hunt directed it. It first aired on March 25, 2014, on CBS in the United States and on CTV in Canada.
The show follows a government computer system called "The Machine," which can gather all available information to predict terrorist acts and identify those planning them. A team made up of John Reese, Harold Finch, and Sameen Shaw handles "irrelevant" crimes—cases the government considers low priority. In this episode, the team tracks a woman trying to clear a friend's name after a terrorist incident. At the same time, Root attempts to get close to Greer and learn more about Samaritan.
According to Nielsen Media Research, the episode was watched by an estimated 12.23 million viewers and earned a 2.0/6 ratings share among adults aged 18–49. Critics gave the episode positive reviews, though some found the case itself underwhelming. Others praised how it connected to the larger story arc, especially the final scene.
Quick Facts
- Series
- Person of Interest
- Season
- 3
- Episode
- 18
- Director
- Jeffrey Hunt
- Writer
- Tony Camerino
- Photographer
- Manuel Billeter
- Editor
- Scott Powell
- Production
- 2J7618
- Airdate
- 2014-03-25
- Length
- 44 minutes
- Guests
- Nazneen Contractor as Maria Martinez / Haaz Sleiman as Omar Risha / John Nolan as John Greer / Michel Gill as Rene Lapointe / Casey Biggs as Ken Davis / William Abadie as Christos Sevon
- Next
- Most Likely To...
Facts from the source article.
Lore & Background
In the episode, the team receives the number of Maria Martinez, an engineer working for HydralCorp. Root begins following John Greer but Greer avoids her. Reese and Shaw watch Maria meet a man whose brother Omar Risha has been arrested for terrorism. Maria places a GPS tracker on a limo belonging to French UN diplomat Rene Lapointe and follows him with evidence of Omar's innocence, but is brushed off. She later meets Greek diplomat Christos Sevon, who gives her his card. Reese and Finch talk to Lapointe for information. After saving Maria from hitmen, the team learns that Omar saved Maria's life in Iraq and that HydralCorp's corrupt CEO Ken Davis is responsible for Omar's false accusations. Maria infiltrates Lapointe's office with Sevon's help, but Sevon kills Lapointe and is subdued by Reese and Fusco. Omar is granted asylum. In the final scene, Root follows Greer and finds him meeting Davis in Central Park; Greer has Davis killed. Greer offers Root a position at Decima, which she refuses, and Greer allows her to go.
Reader's Guide
According to Nielsen Media Research, the episode was seen by an estimated 12.23 million household viewers and gained a 2.0/6 ratings share among adults aged 18–49. This was an 11% increase from the previous episode. With Live+7 DVR, the episode was watched by 16.64 million viewers with a 3.2 in the 18-49 demographics. The episode received positive reviews. Matt Fowler of IGN gave it an 8 out of 10, noting the case's connection to the larger story and praising Root's scenes. Phil Dyess-Nugent of The A.V. Club gave it a "B" grade, observing that after the previous episode, Person of Interest mostly reverted to formula. Critics were underwhelmed with the case but highlighted its connection to the overarching arc, particularly the final scene.
The Vigilante Premise
Person of Interest is an American science fiction crime drama built around a deceptively simple yet morally charged concept. At its center stands John Reese, a former CIA operative whose death has been assumed by the outside world. He is recruited by Harold Finch, a mysterious billionaire who has constructed an advanced surveillance system called The Machine. This system outputs a Social Security number pointing to an individual who will figure in an imminent lethal crime, whether on the side of the perpetrator or the victim. Finch enlists Reese to act on these warnings, and together they pursue a form of vigilante justice that operates entirely outside the law. Their activities inevitably draw the attention of two NYPD officers, Joss Carter and Lionel Fusco. Rather than working against the pair, Reese leverages these officers to his advantage, using their access and authority while he investigates each person of interest. The result is a tense, morally ambiguous partnership that defines the show's identity.
The Ensemble and Their Backstories
Beyond the central duo of Reese and Finch, the series assembles a team of characters whose pasts are as layered as their present mission. Samantha Groves, known as Root, is a highly intelligent computer hacker and contract killer who joins the group. The Machine later designates her specifically as its "analog interface," a title that underscores her singular relationship with the system. Sameen Shaw arrives as a former ISA assassin; crucially, she had unknowingly handled the "relevant" numbers the Machine surfaces, meaning her past actions intersect directly with the data driving the team's work. On the law-enforcement side, NYPD officers Joss Carter and Lionel Fusco become Reese's operational partners, providing the legal cover and field access he needs. Each member brings a distinct skill set and moral complexity, and their interactions—shaped by trust, suspicion, and shared danger—form the emotional backbone of the series.
Creative Vision and Production
Person of Interest was created by Jonathan Nolan, who also served as an executive producer throughout the series. He was joined in that role by a distinguished group of producers, including J.J. Abrams, Bryan Burk, Chris Fisher, Greg Plageman, and Denise Thé. The show aired on CBS, one of America's major broadcast networks, and was classified as a science fiction crime drama—a genre blend that positioned it at the intersection of speculative technology and procedural storytelling. The creative leadership brought a distinctive sensibility to network television, weaving questions of surveillance, artificial intelligence, and moral authority into a format that also delivered the episodic structure audiences expect from a crime drama. The collaboration among these producers shaped the series' tone, pacing, and thematic depth across its entire run.
The Five-Season Arc
Person of Interest ran for five seasons, delivering a total of 103 episodes between its premiere on September 22, 2011, and its final broadcast on June 21, 2016. This multi-season span gave the writers and producers room to evolve the narrative well beyond its initial crime-prevention framework. The first season introduced the core team and established the rules of The Machine, while subsequent seasons deepened the relationships among Reese, Finch, Root, Shaw, Carter, and Fusco. The length of the run allowed the series to explore increasingly complex questions about surveillance, the ethics of preemptive intervention, and the nature of the Machine itself. By the time the final episode aired in mid-2016, the show had built a substantial body of interconnected storylines, character development, and thematic resonance spanning nearly five years of weekly television.
Frequently Asked Questions
Who wrote and directed the Person of Interest episode Allegiance?
Tony Camerino penned the script, while Jeffrey Hunt was behind the camera as director.
What is the plot of Allegiance (Person of Interest)?
The team takes on a case centered on a woman who is working to clear her friend's name, which pulls Reese, Finch, and Shaw into the investigation.
What season and episode number is Allegiance?
It is the 18th episode of Season 3, making it the 63rd episode of the series overall.
When did Allegiance air and where?
It premiered on March 25, 2014, on CBS in the United States, with CTV carrying the broadcast in Canada.
Why is Allegiance important in the Person of Interest timeline?
As a late-Season 3 entry, it continues the team's pattern of pursuing 'irrelevant' cases that the government has deprioritized, reinforcing the show's central theme of fighting for individuals the system overlooks.
More in Person of Interest episodes 1-24
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