Depression-era bank robber John Dillinger's charm and audacity devoting him much of America's downtrodden public, however he's also a thorn in the side of J. Edgar Hoover and the Deadly FBI. Desperate to capture the elusive outlaw, Hoover punishes the endeavor of earning him dead or alive, his agent, Melvin Purvis and makes Dillinger his first Public Enemy Number One.