In the 1930s, boxer Barney Ross wins the welterweight championship, then meets chorus girl Cathy Holland as he celebrates. Sam Pian, his trainer, learns that Barney placed a $10,000 bet on himself to win the fight. Barney's love interest is Cathy, a single mother of a girl named Noreen, who is unaware of his gambling habit. When Barney loses a fight, he owes thousands to a bookie named Big Ralph and is forced to work in Ralph's bar to pay the debt. Barney joins the Marines when war breaks out. He marries Cathy before leaving for the South Pacific, where he saves another soldier's life at
Guadalcanal to earn the
Silver Star. But he also contracts
malaria, for which a medic prescribes
morphine. Back home in Chicago, Barney takes a job with a public-relations firm by the father of the man whose life he saved. Barney is now addicted to morphine and incurs a huge debt to Rico, a drug pusher. Cathy catches her desperate husband breaking into Noreen's piggy bank, so she moves out. Barney becomes suicidal, but when his wife returns to inform him that Rico has been arrested, he vows to beat his addiction. He checks into a hospital in Kentucky while the whole country becomes aware of his plight. Four months later, Barney is permitted to leave, rejoin his family and resume his life. ==Cast==