Although unsuccessful in their first attempt to assassinate Chicago's Mayor, Anton J. Cermak, the Capone mob under the command of Frank Nitti and several other of the imprisoned mobster's lieutenants, have not given up. This time they hire a professional, Fred 'Caddy' Croner, an expert at using a long rifle with a scope who carries his weapon in a golf club bag. They put him on a retainer until Cermak goes out of town and sure enough, they learn that the Mayor will be traveling to Miami to attend a public event in honor of the President-elect, Franklin Delano Roosevelt, who is visiting the area before returning to Washington for his inauguration a few weeks later. Eliot Ness and the Untouchables are soon onto their plan and travel to Miami to protect Cermak. Unbeknown to them however, a crazed man, Giuseppe 'Joe' Zangara, has purchased a handgun with the intent to kill Roosevelt at the same public function.
