Season 1 begins in 1905 and spans over 50 years to trace the rise of Charles “Lucky” Luciano, Meyer Lansky, Benjamin “Bugsy” Siegel and other notorious gangsters from their beginnings as a neighborhood gang of teenagers to murderous entrepreneurs and bootleggers who organized the criminal underworld, turning the Mafia into an American institution.

Season 2 chronicles the rise and fall of iconic gangster Al Capone, as well as the story of his successors, collectively known as “The Chicago Outfit.” Spanning the better part of a century, the series begins with Capone’s early days in New York and continues through his move to Chicago - to work with his childhood mentor in the underworld.