The latest number that the machine dispenses belongs to Michael Cahill (Michael Aronov), who on the surface is an unassuming and upstanding but solitary citizen, which masks the fact of being involved in a major smuggling ring led by a man named Vargas (José Zúñiga). Members of the ring will not hesitate to kill if anyone gets in their way. Reese quickly infiltrates the smuggling ring as one of their own. But when Reese follows Cahill away from the group, Reese finds that his former name is Daniel Tully, and that he is a husband, father and undercover cop, who is deep undercover. Cahill could have long ago put Vargas away, but is waiting to nab the ringleader, a man going by the code name L.O.S. Reese also learns that Vargas probably has a connection working inside the police force. While Finch gets Carter to provide information on the police workings of undercover cops, Reese gets Fusco to re-establish his connections with the dirty cops to flush out Vargas' connection.