Sherlock and Watson investigate a child abduction case involving a serial killer known as "The Balloon Man."
While the Soprano and Lupertazzi crime families clash over asbestos removal, Paulie struggles to deal with a devastating personal loss.
Tony's son AJ is suicidal over his break-up with Blanca, and Christopher falls of the wagon with catastrophic consequences.
Tony attempts to repair the rift between New Jersey and New York. Elsewhere, AJ's depression continues, and an associate crosses the line with Meadow.
A crucial agent crumbles under emotional distress and threatens to topple a valuable network of KGB informants. Professionally, Philip and Elizabeth are tasked with infiltrating the FBI's new communications encryption system.
