Plot summary
Finch takes a wounded Reese to the morgue and pays an assistant to suture Reese's wounds while sending Fusco to misdirect the CIA. While Reese is in a wheelchair, Finch rents an apartment for him. The building's super, Ernest Trask, is the newest number; Reese and Finch believe him to stalking one of his tenants, Lily Thornton, and targeting her boyfriend Rick. However, Trask reveals that Rick is the one stalking Lily and he is only trying to protect her. Reese rushes to Lily's apartment to save her from Rick and ends up throwing him out of a window during the confrontation, leaving Rick severely injured.
Finch later discovers that Trask's wild claims about his previous life are actually true and he is in the Witness Protection Program. Having recognized him from the evidence lockup robbery, Carter attempts to contact Finch, who gives her information that helps her stop a homicide; Finch later calls and explains that his purpose is to prevent crimes. In flashbacks, Finch and Ingram come at odds with the NSA, whose employee Denton Weeks is attempting to seize control of the Machine over concerns regarding its constitutionality.
Credits
Adapted from Wikipedia contributors, Person of Interest season 1. HTML formatting and reference markers removed.