Season 3 Episode 18 episode 18

Person of Interest Season 3 Episode 18 "Allegiance" Photos

Person of Interest Season 3 Episode 18 "Allegiance" Photos

The latest POI is hunting a United Nations diplomat and an enemy tries to gain the upper hand on Root in Person of Interest Season 3 Episode 18, "Allegiance," airing March 25. CBS has released spoiler photos featuring lots of Fusco (finally!).