The Crowd Roars is a 1938 film starring Robert Taylor as a boxer who gets entangled in the seamier side of the sport. It was remade in 1947 as Killer McCoy, featuring Mickey Rooney in the title role. This film was not a remake of the 1932 film of the same name starring James Cagney.
While training, Tommy meets and falls in love with Cains daughter Sheila Maureen OSullivan. Cain has been very careful to keep his daughter from learning about his profession. Cain tries to break up their romance, but without success.Tommy wins fight after fight, becoming a contender. If he wins his next bout, he will get a shot at the world championship title. However, Pug Walsh Nat Pendleton, a traitorous associate of Cains, has both Sheila and Brian kidnapped. He orders Tommy to lose the fight in the eighth round, or else. Tommy has no choice he endures a merciless pounding for round after round, not even daring to hit his foe for fear a lucky punch could end the match and his loved ones lives. Fortunately, Brian pretends to collapse, then manages to grab a gangsters gun. He sends Sheila to the fight, while he holds their two former captors at gunpoint. However, while he is distracted by the radio broadcast of the fight, one of the men shoots him he fires back, and all three are killed. Sheila arrives just before the start of the eighth round. Tommy proceeds to knock out his opponent, then announces he is giving up boxing. Cain also retires. Afterward, Tommy and Sheila get married. ........
Source: Wikipedia