James J. Jeffries

A couple attempts to win custody of their orphaned grandson, who's being raised by his veterinarian uncle in a racetrack environment.

Anna and Joe are newly married, playful and deeply in love. Joe is scraping by as cab driver in New York City during a period of corruption, mob control and violence between cab companies.

Prizefighter Jimmy Nolan, facing an opportunity to get a championship fight, is knocked out when he sustains what is apparently a permanent injury to his arm. From there, Nolan's path leads downhill. He is drawn into a romance with a nightclub entertainer, then is framed on a theft charge by a jealous suitor. After his prison term, Nolan makes a spectacular comeback in a fight which proves his courage and integrity, while disproving the fallacy about the old sports adage that "they never come back."

A cub reporter rashly makes a promise to solve a murder mystery within 24 hours, then must make good on his boast.

A young mechanic loses an amateur fight at a carnival, and sets out to train hard to become a professional boxer.

Gambler and fight promoter Jim Lambert, grants Gunner O'Brien his dying wish and agrees to care for Gunner's granddaughter, Mona, believing her to be a child. Mona turns out to be a beautiful young woman, however, and Jim overnight stops drinking and chasing skirts, becoming a devoted family man. Killer Gordon, one of Jim's fighters, becomes friendly with Mona, and Jim, believing that she loves Killer in return, himself turns for consolation to his former mistress, Yvonne, whom he asks to marry him.

"One-Round' Hogan is a heavyweight prizefighter with a knockout punch contending for a championship bout who, because of the death of a friend, almost wrecks his own career by holding back.

"The Prince of Broadway" George Burke, heavyweight boxing champion of the world, trains by drinking and dancing all night. After he is knocked out, his manager tears up his contract and tells him he is through. His sweetheart, actress Nancy Lee rescues him from the gutter and asks her admirer, Wade Turner to take him to his ranch to get back in shape. Wade, jealous of George, tells his foreman, Buck Marshall, to hinder George's comeback. Wade’s neighbor, former champ Jim Jeffries offers to help George get back into condition. Trying for the advantage Wade tells Nancy that George is not training, but when she goes out to the ranch, she uncovers the conspiracy. George regains the championship and wins Nancy's hand.

A man contacts a boxer in order to get in shape.

Avery DuPoys is a wealthy businessman, organising a race. He meets one of the competitors of the race, who is in love with DuPoys's daughter. Another competitor crashes into the action, who is also in love with DuPoys's daughter. DuPoys suggests that whoever wins the race will have the opportunity to visit his daughter every Wednesday night. An action-packed race commences, with one competitor doing more than usual to win the race.