Jeff Chandler stars as a coal miner man who turns to professional boxing in the explosive drama Iron Man. Set in a small mining town in Pennsylvania, Coke Mason (Chandler) is a man with simple life ambitions endeavors to marry Rose (Evelyn Keyes) and own a small business. His gambling brother George (Stephen McNally), however, has plans to take advantage of Mason's intense rage and transform him into a professional boxer. Worried that his "killer instinct" may prove to be too much in the ring, Mason must cope with the pressures of his newfound success.