From Montreal to Miami, from New York to Los Angeles, crime has everything in common... and nothing. Some cities are controlled by the Italian Mafia. Some by Colombian drug lords. Others by Irish gangs, Russian gangs, Crips, Bloods, Triads. What unites them is profit at any cost. And what stops them? Almost nothing. These streets may be paved with gold; but they're also paved with blood. Underworld takes you into the heart of crime as you meet the gangsters - many still in hiding - who speak openly about what it takes to make it to the top; and meet the men and women intent on bringing them down, the FBI agents, DEA agents, and local cops who put their lives on the line every day. Features face-to-face interviews with Miami's Humberto Aguilar, cocaine money launderer and Fernando Garcia, Cuban-born coke smuggler; Philly's Nick "The Crow" Caramandi, mobster under Angelo Bruno; Domnic Spinale, the Vegas mobster and professional gambler; Kevin Weeks, a Lt. for Boston's notorious James 'Whitey' Bulger; 'Mad' Frankie Fraser from London's Richardson gang and Freddie Foreman from the Krays; Kershaun 'L'il Monster' Scott from the Eight Tray Gangster Crips and Tuemack 'T' Rodgers from the Black P Stone Bloods in LA; Chicago's Frank Cullotta and William 'Red' Wemette from Chicago's 'Outfit'; Raymond 'Shrimp Boy' Chowfrom San Fran's Hop Sing Boys Gang; 'Cyclone' the FBI informant from Tijuana; Boris Nayfeld an enforcer with the Russian mob in Brooklyn; and Timmy Ricciardi, an ex-Lucchese Captain in New York. All these, and many more, provide unforgettable, in-depth, behind-the-scenes insight into life on the streets - brutal, deadly, merciless and unforgiving. This is where it happens every day, and this is how it happens in the Underworld.