Watch Person of Interest Season 3 full episodes online, free and paid options via our partners and affiliates.

Stopping Samaritan
Watch Person of Interest Season 3 Episode 23
"Deus ex Machina"
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On the Person of Interest season 3 finale, the battle with Vigiliance peaks while the team tries to stop Samarian from destroying them all.

Preventing a Couple's Murder
Watch Person of Interest Season 3 Episode 22
"A House Divided"
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When the Machine can't finish its calculations on a fatal event, it sends the team to check out five separate numbers on Person of Interest.

Being Hunted
Watch Person of Interest Season 3 Episode 21
"Beta"
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Using Samaritan's feeds, Decima searches for Reese and Shaw on Person of Interest.

Posing as Secret Service
Watch Person of Interest Season 3 Episode 20
"Death Benefits"
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Reese goes undercover to get close to a Congressman who could bring down Decima's second Machine on Person of Interest

Reese At the Reunion
Watch Person of Interest Season 3 Episode 19
"Most Likely To..."
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Shaw and Reese go undercover at a high school reunion to try and protect the latest Person of Interest.

Embroiled in Politics
Watch Person of Interest Season 3 Episode 18
"Allegiance"
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Finch and Reese get the number of a former government contractor who is stalking a UN diplomat on Person of Interest.

Calling on Root
Watch Person of Interest Season 3 Episode 17
"/"
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Root's presence puts Finch's life in danger and then his number comes up on Person of Interest. Cal

Finch's Secrets
Watch Person of Interest Season 3 Episode 16
"RAM"
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Secrets about Finch's past and how they relate to present events come to light on Person of Interest.

Call Center Complication
Watch Person of Interest Season 3 Episode 15
"Last Call"
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When a 911 operator needs protection, Finch goes undercover at an emergency call center on Person of Interest.

Reese Returns
Watch Person of Interest Season 3 Episode 14
"Provenance"
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Reese comes back to work with Finch but a turn of events may have them planning a heist that could end up with them all in jail on Person of Interest.

Reese Is Furious
Watch Person of Interest Season 3 Episode 13
"4C"
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Reese realizes that his travel plans have been tampered with when he tries to leave the team for good on Person of Interest.

Finch Fights POI's Enemies
Watch Person of Interest Season 3 Episode 12
"Aletheia"
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Person of Interest returns after it's winter cliffhanger with the POI team struggling to fight off their enemies with Reese.

Reese Finds Trouble
Watch Person of Interest Season 3 Episode 11
"Lethe"
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Reese heads out on his own while a look back at Finch's teen years gives some insight into how the Machine was created on Person of Interest.

The Search for Justice
Watch Person of Interest Season 3 Episode 10
"The Devil's Share"
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Finch fears that one member of the team will go to far in the search for justice for Carter's murder on Person of Interest.

Reese's Number
Watch Person of Interest Season 3 Episode 9
"The Crossing"
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The team faces its greatest threat when the Machine spits out Reese's number and the battle to bring down HR continues on Person of Interest.

38 Numbers
Watch Person of Interest Season 3 Episode 8
"Endgame"
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When a conflict arises with the Russian mob, Finch receives 38 numbers at once on Person of Interest.

The Hypnotherapist
Watch Person of Interest Season 3 Episode 7
"The Perfect Mark"
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The team must check on a hypnotherapist whose number shows up on Person of Interest.

Root and Shaw
Watch Person of Interest Season 3 Episode 6
"Mors Praematura"
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Shaw needs to help when a new Root gets instructions from the Machine on Person of Interest.

Taking Its Toll
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"Razgovor"
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Shaw ends up tailing a ten-year-old girl when her number comes up on Person of Interest.

A Murderous Attorney
Watch Person of Interest Season 3 Episode 4
"Reasonable Doubt"
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A famous lawyer who may have been responsible for the death of her husband has her number come up on Person of Interest.

Shaw & the Playboy
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"Lady Killer"
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Finch and Reese get some feminine help to catch a playboy whose number comes up on Person of Interest.

Meet the Rookie
Watch Person of Interest Season 3 Episode 2
"Nothing to Hide"
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An entrepreneur who frequently hacks into other people's lives finds that his number comes up on Person of Interest.

Fleet Week
Watch Person of Interest Season 3 Episode 1
"Liberty"
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Reese and Finch face a unique challenge when the now self-governed machine sends numbers that target a US Naval officer but with Fleet week in full swing, can they figure out which officer in time on the season 3 premiere of Person of Interest.