Plot summary
The Machine produces the Social Security number of Joey Durban, a former soldier. On returning from Afghanistan, Joey joined a gang of former soldiers who have taken to robbing banks. Reese infiltrates the gang for their final robbery at an NYPD evidence lockup. They steal a file marked "Elias, M." before Latimer, the ringleader, begin killing off the gang members and escapes. Reese starts tracking him down, but discovers that Latimer has himself been murdered after handing the file over to Elias, his contact. The file is revealed to contain photos from the scene of a brutal murder.
Credits
Adapted from Wikipedia contributors, Person of Interest season 1. HTML formatting and reference markers removed.