It started with a severed foot in a vacant lot. By the time the painstaking FBI investigation ended, a powerful Mafia crime family was shattered, and its once-invincible "don" faced life behind bars. With firsthand accounts from FBI special agents, this program explores the brave new world of federal investigation, which combines old-fashioned undercover work with cutting-edge financial sleuthing and forensics. The latest SECRETS OF THE DEAD installment tracks the dramatic downfall of "Big Joey" Massino, delving into the largely unheralded FBI effort to cripple the mob. Joseph D. Pistone, who posed as tough-talking jewel thief Donnie Brasco and whose time in the Mafia was later made into the movie Donnie Brasco, provides insight. Tony-winner Liev Schreiber narrates.