On this episode of Person of Interest…

Reese and Root follow the clues about Shaw to the town of Maple, New York.

They discover that Samaritan has taken over the town and is studying humanity. It also has a secret factory where it is testing on humans.

Reese and Shaw discover they weren’t following Shaw, but someone else who was shot at the New York stock exchange battle. Reese rescues her, and Finch says he will help her with a new identity.

Finch tells Root not to become consumed with finding Shaw, but she tells Finch he simply lost hope. The Machine tells them to stop.

Root walks away.

Fusco works with Silva on a case involving a killer. She manages to save him from being shot.

It is revealed that Shaw is alive as Greer watches over her.