It's 1933 and Prohibition has given rise to the American gangster–now infamous names like Bonnie and Clyde and John Dillinger. Bank robberies at gunpoint are commonplace and kidnapping for ransom is the scourge of a lawless nation. With local cops unauthorized to cross state lines in pursuit and no national police force, safety for kidnappers is just a short trip on back roads they know well from their bootlegging days. Gangster George "Machine Gun" Kelly and his wife, Kathryn, are some of the most celebrated criminals of the Great Depression. With gin-running operations facing extinction and bank vaults with dwindling stores of cash, Kelly sets his sights on the easy-money racket of kidnapping. His target: rich oilman, Charles Urschel.