Reese and Fusco help a transcriber at a software firm who is the team's new Number, while Claire contacts Finch and asks him for help against Decima.
Finch suspects that a fellow juror is trying to rig the proceedings in a murder trial. Meanwhile, Reese begins to open up to the department's therapist.
While Reese and Root look for Sam in an upstate New York town, Fusco helps out the newest Number with the help of a previous one.
Samaritan begins to withhold information from the ISA, raising Control's suspicions. Meanwhile, Root and Reese search for their missing teammate.
The team must go on a seeming suicide run to prevent the financial meldown that Samaritan has engineered.
To demonstrate its power to the Machine, Samaritan launches a massive effort to shut down all crime in NYC for 24 hours... and then unleash it worse than ever. Meanwhile, Finch and Reese try to keep up with the new influx of Numbers, and Root meets with her opposite number.moreless
Reese and Finch receive a new Number: Elias, who Dominic wants dead. Meanwhile, Root rescues Sam from Martine but Sam doesn't want to be rescued, and threatens to go public if they don't let her help save Elias.moreless
The team's new number is a police academy recruit: a loose cannon who is apparently working for the gangs. Meanwhile, Samaritan sends Martine to track down the woman who prevented it from obtaining the virus.moreless
The team's new Number turns out to be an international jewel thief, and Sam has to get close to the man to find out if he's victim or perpetrator. Meanwhile, Finch recruits Root to help him undermine Samaritan's plans to distribute tablets to school children.moreless
The team's new Number is a mild-mannered insurance agent who is pretending to be a police detective to investigate the supposed suicide of a co-worker's brother. Meanwhile, Finch is sent to a conference in Hong Kong and meets an attractive businesswoman specializing in computers.moreless
While Finch, Sam, and Root try to protect a pollster who suspects that Samaritan rigged the elections, Reese is sidelined in therapy due to his high number of shootings during homicide cases.
The Brotherhood goes after two children who stole drug money from them, and Reese has to team up with a DEA agent to stop them. Meanwhile, Finch turns to Elias for help.
The team's new number is a professional wingman, and Fusco has to go undercover as a needy client while Reese deals with a demanding police captain. Meanwhile, Root takes Finch on a scavenger hunt for the Machine.moreless
Reese involves Finch in his attempt to protect a new Number, a mathematics student who is playing a city-wide game. However, they soon discover that the game is much more than a simple scavenger hunt.moreless
After several months of silence, the Machine sends a new Number to Reese and Sam... and Finch, who ignores the call. Meanwhile, Fusco gets a new partner and Elias receives an unexpected visitor.moreless
Priscilla fights her way back to reality with the help of Aaron and Rachel. Trueman's atrocities escalate as he tries to stop the resistance. Bass and Miles kidnap the President.
With his wife and son now dead, Neville joins with Bass to seek his revenge on the patriots. Rachel finds out about Priscilla, and Miles and Charlie pinch a steam train.
When Decima prepares to bring the Samaritan AI online, the team finds itself caught between that organizations attempts to wipe them out and Vigilance's plan to put an end to intrusive government surveillance.moreless
Charlie finds Miles and Truman gets his shot to get Miles and Bass.
Miles gets injured fighting off a bunch of Sheriffs and then gets inadvertently trapped in a dilapidated building making his way back to camp. Tom kidnaps Charlie and discovers the truth about Jason.moreless
Now that they have Samaritan up, Decima begins the hunt for Reese, Sam, and Finch... and plans to use Grace Hendricks to lure Finch out of hiding.
Bo is drawn to a blogger and his wife after a source tells him that Orchestra and its plan to weaponize psychics must be exposed.
After receiving inside information from Jason, Miles and Monroe head to Austin to try and sabotage the Patriots' plans. Aaron becomes concerned over Priscilla's odd behavior.
Vigilance launches a new attack and the team splits up: Finch and Fusco go to Washington to investigate, while Reese and Sam go to a high school reunion to protect their newest Number.moreless