PERSON OF INTEREST Season 2 Episode 17 Proteus Photos : “Proteus” – After the machine gives Reese and Finch six numbers at once, their search for clues leads them to a coastal town where they are forced to ride out a storm with a group of locals in a police station. However, as the weather rages outside, a sinister situation arises inside when they realize there is an unidentified killer hiding among them, on PERSON OF INTEREST, Thursday, March 7 (9:01 – 10:01 PM, ET/PT) on the CBS Television Network.