Season 1 Episode 13 episode 13

Person of Interest Episode 13 "Root Cause" Extended Promo

Person of Interest Episode 13 "Root Cause" Extended Promo

Finch is used to being the hacker, but now their system is being hacked. Who will protect Finch and Reese, like they protect others? New scenes and spoilers in this extended promo for Thursday's all-new episode on CBS.