A mysterious benefactor gives an ex-government operative a chance at redemption. All they have is the name of a person who will be involved in a violent crime, whether as victim or perpetrator, they don't know, but will find out.
Reese and Finch surveil their latest POI, Dr. Megan Tillman, while she's on call and after hours to unravel the threat surrounding the promising young physician.
When the Machine produces the number of a judge renowned for his tough sentencing, Reese and Finch have the added challenge of an uncooperative POI who has too many enemies.
When Reese and Finch discover that their latest POI has connections to Cold War Soviet espionage circles, they quickly learn how covert ops were handled in a world before The Machine.
Reese and Finch's game of cat and mouse with Detective Carter becomes infinitely more complicated when The Machine declares that she is their newest POI.
As Detective Carter deals with the fallout from her recent encounter with Reese and Finch, The Machine ups the ante for the duo by giving them four Social Security numbers instead of one.