Person of Interest (2013) – Season 2 Episode 21:
Zero Day


Watch Person of Interest Season 2 Episode 21 (May 02, 2013) – "Zero Day" online

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Person of Interest Season 2 Episode 21 (May 02, 2013) – "Zero Day"

John Reese, former CIA paramilitary operative, is presumed dead and teams up with reclusive billionaire Finch to prevent violent crimes in New York City by initiating their own type of justice. With the special training that Reese has had in Covert Operations and Finch's genius software inventing mind, the two are a perfect match for the job that they have to complete. With the help of surveillance equipment, they work "outside the law" and get the right criminal behind bars. 

Episode 21 of Person of Interest Season 2, titled "Zero Day", originally aired on May 02, 2013, marks a significant turning point in the ongoing narrative. This episode masterfully blends emotional intensity with plot development, offering a viewing experience that is both immersive and thought-provoking.

The episode begins with a gripping introduction that instantly hooks the audience. Through atmospheric visuals and a hauntingly beautiful score, the opening sequence sets a tone of mystery and urgency. Key characters face difficult decisions, unveiling new aspects of their personalities. The writing is sharp, the pacing deliberate, and every moment feels earned.

Midway through, the tension escalates. A critical conflict drives the characters into uncharted emotional territory. The interplay between performance and direction is striking—close-up shots, silences, and subtle gestures convey volumes. This is where the episode shines, inviting deep reflection on themes like identity, morality, and consequence.

As the episode nears its conclusion, the stakes rise even higher. Unexpected twists, moral dilemmas, and layered revelations lead to a memorable finale. Fans will appreciate how this episode builds upon prior events while setting up intriguing possibilities. Technically, it’s a showcase of tight editing, production design, and resonant scoring.

Whether you're a long-time fan or a new viewer, this episode 21 of Person of Interest Season 2 delivers a compelling experience. With its blend of drama, tension, and emotional depth, "Zero Day" stands out as a pivotal installment—one worthy of multiple viewings and in-depth discussion.

Person of Interest Season 2 Episode 21 - Zero Day (2013)
8.9/10 from 30 votes
Title Person of Interest
Genre Drama, Action & Adventure, Crime, Sci-Fi & Fantasy
Air Date2013-05-02
Season2
Episode21
Overview John Reese, former CIA paramilitary operative, is presumed dead and teams up with reclusive billionaire Finch to prevent violent crimes in New York City by initiating their own type of justice. With the special training that Reese has had in Covert Operations and Finch's genius software inventing mind, the two are a perfect match for the job that they have to complete. With the help of surveillance equipment, they work "outside the law" and get the right criminal behind bars. 
Stars
  • Jim Caviezel (John Reese)
  • Michael Emerson (Harold Finch)
  • Kevin Chapman (Lionel Fusco)
  • Taraji P. Henson (Joss Carter)
Subtitles Arabic, Basque, Catalan, Croatian, Czech, Danish, Dutch, English, Filipino, Finnish, French, French Canadian, Galician, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Italian, Japanese, Korean, Malay, Norwegian, Polish, Portuguese, Romanian, Russian, Simplified Chinese and Traditional Chinese, Spanish, Swedish, Tamil, Thai, Turkish, Ukrainian and Vietnamese.

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 Amanda ScottRating: 8.7/10
2025-07-06 — Season 3, Episode 31

Constant evolution with fresh character challenges.

 Robert EvansRating: 8.5/10
2025-07-12 — Season 4, Episode 46

Every season adds layers to a deep narrative.

 Sophia MartinezRating: 9.2/10
2025-06-22 — Season 5, Episode 5

Great production quality and immersive cinematography that develops over time.

 Emily JohnsonRating: 9.2/10
2025-06-28 — Season 9, Episode 29

Constant evolution with fresh character challenges.

 Mark DavisRating: 9.1/10
2025-06-26 — Season 3, Episode 21

An emotional rollercoaster with meaningful relationships.

 Michael LeeRating: 8.7/10
2025-06-24 — Season 2, Episode 28

Top-notch cinematography and well-paced story arcs.

 Grace HallRating: 8.9/10
2025-07-08 — Season 2, Episode 10

An outstanding TV series with deep emotional storytelling, brilliant acting, and twists that keep you coming back.

 Amanda ScottRating: 8.9/10
2025-07-17 — Season 5, Episode 6

Fantastic cast and direction that dives into characters.

 Grace HallRating: 8.7/10
2025-06-17 — Season 3, Episode 47

An emotional rollercoaster with meaningful relationships.

 Emily JohnsonRating: 8.9/10
2025-06-27 — Season 4, Episode 20

Perfect blend of drama, suspense, and character development.

 Mark DavisRating: 8.5/10
2025-06-21 — Season 9, Episode 42

Pushes boundaries while maintaining emotional sincerity.

 James ThompsonRating: 9/10
2025-06-18 — Season 9, Episode 3

Every season adds layers to a deep narrative.

 Sarah ParkerRating: 9/10
2025-06-24 — Season 3, Episode 46

Every episode is filled with tension and depth.

 Michael LeeRating: 9.4/10
2025-06-18 — Season 6, Episode 28

Perfect blend of drama, suspense, and character development.

 James ThompsonRating: 9.3/10
2025-06-27 — Season 2, Episode 34

Rich scenes and satisfying tension building.

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