Auggie turns to an old flame, Natasha, to hack a Paris bank and find out who funded the Chicago bombing. Meanwhile, Arthur has a busy day in the field and Joan asks Calder to help get the heat off of them.
Annie risks her identity to reconnect with the Russian banker who financed the bombing, but McQuaid comes to her aid. Meanwhile, Auggie is forced to juggle two relationships, and Calder finds a familiar face in the internal investigation.
Annie and McQuaid go to Azerbaijan to find an ex-CIA employee connected to the bombing, Auggie's relationship with Natasha is in jeopardy, and Calder's call-girl acquaintance is in trouble with the law.
After Annie decides to leave the agency and work for McQuaid, she discovers a possible link between McQuaid and the Chicago bombing. Meanwhile, discovers that Auggie covered up Annie's heart condition.