Person of Interest

Reese and Finch attempt to rescue what is left of The Machine, while Root fights for her life and Fusco is questioned by the NYPD.

The Machine glitches upon rebooting, locking Finch out.

Reese's cover could be blown when he realizes that the latest POI has a connection to his old colleagues in the CIA.

Shaw escapes her captors, but the team is unsure of her mental state when she begins to act paranoid and reckless.

Reese protects an NYPD analyst whose investigation into a software glitch has drawn the attention of Samaritan. Also, Fusco is threatened by an ally of Elias, who is looking to avenge his friend's death.

The Machine sends Reese and Finch to a wedding to protect a pair of POIs before their nuptials. Also, Fusco becomes angry at being kept in the dark by the team and takes it upon himself to investigate a string of missing person reports.

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

Reese and Finch become trapped in a hospital which has just become ground zero for a deadly viral outbreak. Also, Samaritan's newest recruit has second thoughts, and Shaw continues to struggle with reality.

The mysterious criminal mastermind known as "The Voice" returns, trapping Reese and Fusco in their own precinct with several armed gang members and the latest POI. Also, Root makes a shocking discovery.

Finch's number comes up when a fatal error blows his cover identity and sets off a series of escalating encounters with Samaritan's operatives.

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

As Reese and Shaw race to catch up with Finch, he infiltrates a maximum security government facility in a desperate mission which could mean the end for not only Samaritan, but for himself and The Machine as well.

The POI Team - Finch, Reese, Fusco and Shaw - embark on one final mission to prevent Samaritan from destroying The Machine and cementing its hold over mankind.