It was 1933. They were America's most wanted : suave gentleman criminal Dillinger ; blundering Machine Gun Kelly ; mournful Pretty Boy Floyd ; homicidal Baby Face Nelson ; cranky hillbilly Ma Barker ; and deadly outlaws who longed for the big time, Bonnie and Clyde. Fuelled by cheap liquor and fast cars and with nothing to lose, this motley group of chancers, robbers and gun molls cut a murderous, cash-snatching dash across the US - and became legends. He was their nemesis : ambitious showman J. Edgar Hoover and his strong-arm law enforcers, the `G-Men' of the FBI. And this is the sensational story of the crime spree that shook America, told using shocking secret files and eyewitness accounts to reveal the facts - as never before.