 The film dramatizes the crime careers, and final capture or deaths of John Dillinger, the Barker Gang (Ma Barker, Fred Barker, Arthur Barker, Alvin Karpis), Bonnie and Clyde, Homer Van Meter, Doc Barker and Pretty-Boy Floyd.The "docudrama" does not portray events, many situations, or the FBI Special Agents accurately.For instance, the name of the FBI Special Agent who was killed in the Kansas City Massacre on June 17, 1933 was Raymond J. Caffrey, and it was not his first day with the FBI.