In Person of Interest Season 1, Episode 8 ("Foe"), Reese and Finch track Ulrich Kohl, a former East German spy seeking revenge, while flashbacks reveal critical details about Reese's past with Kara Stanton. The episode explores themes of betrayal and redemption as Kohl discovers his wife is alive and his daughter is safe. For official streaming options, visit HBO Max or Apple TV+ . "Person of Interest" Foe (TV Episode 2011) - IMDb