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.

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

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

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."

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.

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.

James J. Jeffries throwing the medicine ball. An absolutely perfect picture of the champion heavyweight of the world.

"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 splendid subject, showing the champion heavyweight of the world, exercising in his training headquarters. After showing his skill in side-stepping, and fancy steps while skipping the rope at a phenomenal speed, the champion's trainers peel off his sweater and give him a rubdown, during which the mighty muscles on the champion's chest and back are seen to perfection.

"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.

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

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

Film recording of a controversial boxing match with the first black heavyweight champion fighting a white retired former champion.

Twenty-five round fight.

Jeffries walks into his gymnasium at Oakland, Cal., accompanied by Billy Delaney, and begins exercising with the heavy weights. The view was taken with the champion close to the camera, and during the exercises his back is turned to the audience, when his great muscles stand out in bold relief, and, as he strains and tugs at the weights, they give one the impression of huge bands of knotted cords.

A fine picture of the champion and his brother in a very lively one-round sparring bout. The muscles of the champion are shown to excellent advantage, and aside from being a very lively and interesting sparring exhibition the film presents an absolutely perfect photograph of the champion and his brother.

Shot against a painted backdrop of river with town on other bank & mountains behind. Throwing medicine ball while group of men watch, at least one black. He stands up & gets hit on head with ball. Jeffries shadow boxing & dancing with weights in hands. Sparring barehanded, or wrestling with another man.

Another fine picture of the champion going through his side-stepping tactics which have made him famous. The picture ends with a wrestling bout with his brother, Jack Jeffries.