Reese sets himself to solve a case that Carter was never able to close.
When killers come after Selina, Jim tracks down Lovecraft to get him to call off the hit. Meanwhile, Selina and Bruce flee into the city and Alfred and Harvey go after them.
Jim leaves Selina in Alfred's safekeeping while ADA Harvey Dent uses her potential testimony to rattle the man Dent believes is responsible for the Waynes' murders. Meanwhile, Oswald finds Fish's mole in the Falcone organization.moreless
Pierce examines a woman who has confessed to a murder and claims to be possessed by the devil. Meanwhile, obstacles mar Donnie and Moretti's wedding plans.
When Beckett helps out on an undercover Narcotics investigation, the mission turns deadly. To survive, Beckett is forced to use her wits with some of New York's dangerous underworld and a powerful enemy from her past.moreless
The Machine gives Finch and Reese the Number of a hypnotherapist who is using his craft for personal gain. Meanwhile, Carter gets a lead on an antiquities dealer who could give her the means to bring down HR.moreless
When Stephen is convinced by Astrid to attend a party he is shocked to discover one of his classmates is in trouble, he reaches out to John and Cara for help but they refuse to come to his aide because they don't help humans. Stephen must deal with feelings from his own traumatic past when he tries to secretly get Cara to help anyway.
With Stephen now working at ULTRA, John gives him a mission to infiltrate their computer to give The Tomorrow People an advantage in finding new break-outs.
The team's new Number is their youngest: a 10-year-old girl who may be a spy. Meanwhile, Carter continues her hunt for HR.
A New York lawyer is suspected in the death of her husband. When her Number comes up, the team must determine if she's the killer or being framed by the real murderer. Meanwhile, Carter has problems with her new partner when he sees her with Reese.moreless
An old missing persons case of Swarek's re-opens with the discovery of human bones in a ravine. Swarek teams up again with his old training officer, Charlie Walsh, to solve the case but a look at Charlie's life has Swarek rethinking his. Dov and Chloe have to deal with a witch and her disgruntled client.moreless
To combat Root and Decima, Reese and Finch must seek out unusual allies to save The Machine. Meanwhile, HR prepares to eliminate Carter when she probes into Cal's death. And in the past, the final fate of Nathan is revealed.moreless
The Machine becomes increasingly erratic because of the computer virus, and Reese and Finch must find an elusive tech millionaire. Meawhile, Carter puts herself at risk when she tries to find Cal's killer.moreless
Oliver and his team go after Deadshot, only to discover that ARGUS plans to capture the assassin... and recruit him as an operative. Meanwhile, Roy seeks out The Hood while Laurel inadvertently drives a further wedge between Oliver and Tommy. And on the island, Shado teaches Oliver how to use the bow.moreless
While Carter tries to determine if her boyfriend is working with HR or not, Finch infiltrates a tech corporation to determine if their new Number is trying to help the company or hurt it.moreless
While Carter deals with corruption within her own department, Reese and Finch help an elderly gambler and try to figure out why the mob wants him dead.
Francis leaves Washington in the middle of negotiations over the education bill in order to take care of a thorny issue in his home district in South Carolina.
Claire discovers that her own ambitions are put at risk due to her husband's stance over the education bill. Meanwhile, Zoe discovers that work and play are not necessarily mutually exclusive.
Francis resorts to dirty tactics in the fight with the Teacher's Union. Claire visits her former security guard on his deathbed.
Reese and Finch must track a cab driver whose Number has come up... but they don't know if he's involved or if one of his passengers may be the intended victim or predator. Meanwhile, Simmons continues to put pressure on Fusco.moreless
Abby tells her story in Kevin Stack's probable cause hearing, stunning Mitch who had no idea what his wife had been put through. As the tension between Mitch and Abby grows, she decides to take Claire and visit her parents, who have never met their granddaughter. Meanwhile, Mitch seeks to get to the bottom of Stack's mission.moreless
Finch finds a lot of in common with their newest Number, who has run afoul of the government. Meanwhile, Reese learns about Finch's past.
With Abby having been kidnapped by Stack's men, Mitch's sole focus becomes securing her freedom at any cost, even if it means giving up the hard drive taken from Kinross & Clark. His efforts are derailed when he and Ray are taken into custody as material witnesses in an F.B.I. investigation.moreless
Reese and Finch discover that their newest Number has almost no digital footprint... and a double life.
A high-profile reporter, who happens to be a close friend of Frank's, is in town and almost assaulted. Jamie's undercover case reaches a critical stage.
While Magnus deals with two ne'er-do-well flying Abnormals who entangle her in a wild scheme, Will takes a road trip to Monrovia - where he is unsettled by personal revelations and temporarily blinded during a riot.moreless
Reese works as a driver for the newest Person of Interest: an attractive woman who is a master of shady deals. Meanwhile, Carter investigates a murder connected to the stolen evidence box for the M. Elias case.moreless
Even while on a case, Danny tries to swing a romantic weekend with Linda. Jamie's undercover assignment involves a crime family.
When the Machine turns up a deceased individual as a Number, Finch must remember how he came to create the Machine and determine how the apparent error could have occurred.