John Conroy, a crusading district attorney, is tasked to crack down on a Organized crime, which proves more dangerous because the mob has many city officials under their control. He is assisted by a newspaper man, Jerry McKibbon, who does not think Conroy is tough enough to handle this almost impossible assignment. McKibbon finds his efforts are also compromised by political corruption. McKibbon is eventually threatened by an out-of-town assassin who was hired to kill him at a boxing match.