Samaritan launches a cyber-attack on the stock exchange.

Control begins to question Samaritan's growing influence.

Reese & Root travel to upstate NY in their hunt for Shaw.

The Machine sends Finch on his toughest job yet: Jury Duty.

Reese protects a software programmer with two lives.

Reese must protect a street-smart girl who's in too deep.

Reese & Finch help a psychologist with unorthodox methods.

Reese tries to protect a bounty hunter tracking her target.

Reese & Finch save a tech CEO from a hacker attack.

Reese tries to solve one of Detective Carter's cold cases.

Reese & Fusco are caught in a war between two criminal POIs.

Finch & Root race to save the Machine.

The team tries to save The Machine.

The Machine glitches upon rebooting, locking Finch out.

The latest POI has ties to Reese's time in the CIA.

Shaw returns to the team, but she's paranoid & reckless.

Fusco is threatened by an ally of Elias out for revenge.

The Machine sends Reese & Finch to protect a wedding.

Root tries to protect a conspiracy theorist who's now a POI.

Finch & Reese are trapped by a deadly viral outbreak.

The mysterious Voice returns, trapping Reese & Fusco.

Finch's number comes up.

The number comes up for the U.S. President.

Finch makes a final attempt to destroy Samaritan.

The POI Team embarks on their last mission.

Reese and Finch must work together to figure out if their POI is the victim or perpetrator.

Finch flashes back to the origins of The Machine.

Carter closes in on finding out who Reese is.

Reese and Finch have to save a promising young doctor.

The Machine selects a judge who's hard on crime.

Reese is captivated by the newest person of interest.

The Machine selects a teacher who witnessed a mob hit.

Reese and Finch pit high-tech espionage against a Cold War spy.

Detective Carter is selected as the Person of Interest.

The Machine delivers multiple numbers, instead of just one.

Detective Carter witnesses a POI case first-hand.

It's Decision time: Carter comes face to face with Reese.

Reese helps a desperate man near his breaking point.

Reese protects a teen bent on avenging his brother's murder.

Reese infiltrates a smuggling ring to watch over a POI.

Reese poses as an investor to protect a Wall St. trader.

Reese and Finch must protect an infant POI.

Reese and Finch track a POI leading a double life.

The numbers are up for all five New York crime families.

Reese goes undercover with an armoured truck crew.

It's Reese's birthday, and Finch gives him a day off.

Reese uncovers revealing details of Finch's past.

Reese must protect a psychologist from one of her patients while eluding capture by the FBI, who are closing in fast.

Reese enlists Detectives Carter and Fusco to join the search for Finch.

Reese uncovers shocking details of Root's past.

Reese must protect the privileged daughter of a diplomat.

Reese and Finch decide whether to save a killer.

Reese covertly protects an investigative reporter.

Reese goes undercover in the suburbs.

Reese and Finch get more than they bargained for.

The numbers come up for a husband and wife.

Every passenger is a suspect for a NYC cab driver POI.

The FBI redoubles their efforts to catch Reese.

Finch goes undercover to protect a teenage prodigy.

Carter plays a dangerous game with the FBI to help Reese.

Reese is abducted by a former acquaintance.

Reese and Finch meet their match in a tech billionaire POI.

Reese and Finch help a hotel maid in danger.

Reese tracks his counterpart who works for the Machine.

Reese and Finch are trapped in a storm with a faceless killer.

Reese and Finch help a down on his luck card sharp.

Finch follows an exec who may be sabotaging her own firm.

Reese and Finch have 24 hours to save a poisoned man.

When the Machine gets a virus, the POI team is jeopardised.

Reese and Finch race to save The Machine.

Agent Shaw joins the POI team.

A demoted Carter is saddled with a new rookie partner.

Carter, Shaw & Zoe Morgan go out to lure a playboy POI.

A recently widowed lawyer could be a killer or a victim.

Shaw meets her match in a 10-year-old POI with spy skills.

Root receives a mission from The Machine that requires Shaw.

The team receives the number of a hypnotherapist.

The war with HR reaches its boiling point.

The epic battle to bring down HR culminates.

The POI team seeks justice for one of its own.

Finch flashes back to his creation of The Machine.

Multiple enemies converge on the POI team...without Reese.

Reese tries to leave but The Machine has other plans for him.

Reese returns to NY, while the team plans a heist.

Finch goes undercover to protect a 911 operator.

The secrets of Finch's operation before Reese are revealed.

Finch and Root clash over the same number from the Machine.

Finch and Reese play politics with the latest POI.

Reese and Shaw infiltrate a high school reunion.

Reese poses as a Secret Service agent to stop Decima.

Decima threatens Grace to lure Finch out of hiding.

The Machine needs the team's help to stop a catastrophe.

The POI team faces Decima and Vigilance.

The team take new identities.

Will Finch intervene to help a brilliant college student?

Fusco must protect a professional wingman in danger.

Can Reese protect two kids without blowing his cover?

A gifted political pollster's number comes up.

Reese protects an office worker pretending to be a detective.

Shaw risks being detected by Samaritan to save a POI.

Reese poses as a police academy instructor to save a POI.

Will Reese intervene when Elias's number comes up?

Samaritan takes control of New York to find the Machine.