Reese begins twenty-four hour surveillance of Dr. Megan Tillman (Linda Cardellini) when the Machine names her as the next Person of Interest. He and Finch believe she is being targeted by Andrew Benton, a serial stalker and sex offender who drugs his victims before taking advantage of them, only to discover that Tillman is actually stalking Benton and planning to kill him; one of Benton's previous victims was Tillman's sister, who committed suicide shortly after Benton assaulted her. Reese assaults a group of dealers connected to a Mexican drug cartel, stealing their product and planting it on Benton to have him arrested before Tillman can catch him. Tillman, however, abducts Benton, forcing Reese to talk her down. Meanwhile, Detective Carter starts to get closer to Finch and Reese when she finds a surveillance tape from the robbery in "Mission Creep" that shows their exchange. Reese blackmails a police captain to transfer Fusco to Carter's precinct so that he can sabotage her investigation.
