Plot summary
The latest POI, armored-car driver Tommy Clay, is working with a team Finch believes will be robbed. Reese infiltrates the team, but the vehicle explodes during a platinum robbery and Clay shoots Reese, who is rescued by Carter and hospitalized. Finch tracks Clay to a motel where his two partners have been killed, while Fusco realizes HR is connected to the robbery. Finch tracks down Clay's girlfriend Ashley, a waitress, but she kills Clay and attempts to escape with the platinum before being killed by Captain Lynch of HR who is in turn killed by Fusco to save Reese.
In flashbacks, Reese receives a panicked phone call from his girlfriend Jessica before traveling with Kara to Ordos, China, to retrieve a stolen computer. Snow separately orders Kara and Reese to kill the other. In Ordos, Reese realizes the CIA wants the computer destroyed and anyone who had access to it killed, right as a CIA missile destroys the site, seemingly killing Kara. Kara is later revealed to be alive in the present day when she kidnaps Snow and kills his partner.
Credits
Adapted from Wikipedia contributors, Person of Interest season 1. HTML formatting and reference markers removed.