Two boxers compete for the love of a woman.

Jack Saunders and Bob Corby are two boxers in love with Nellie. Jack and Nellie are married but their marriage is flat so she starts to look to Bob for comfort.—Col Needham <[email protected]>

Two boxers, Jack "One Round" Sander and Bob Corby, have fallen for the same girl, Mabel. Mabel and Jack get married, but the flame still burns between Bob and Mabel. Eventually Jack and Bob must settle it in the way they know best, in the ring.—grantss

Jack Sander is a carnival sideshow attraction, he boxing any taker, their goal to last one round in the ring with him, hence his moniker "One Round" Jack. It is the job of his pretty assistant, his unofficial fiancée Mabel, not only to sell tickets but to provide encouragement to spectators to take on Jack. When Jack faces an opponent who not only lasts more than one round but knocks him out in the fourth round, he believes his career at the carnival is over. However, he eventually learns his opponent was champion boxer Bob Corby, who came to test out Jack's boxing skill first hand in looking for a full time sparring partner. With one hurdle left to overcome for Jack to get the position, Jack, in this association with Bob, would also allow him the opportunity for a full-fledged boxing career. When Jack makes the statement that he would fight for Mabel, he was not aware at the time that he may literally do so in the ring against Bob, an attraction between Bob and Mabel which has existed as early as they setting eyes upon each other outside the carnival tent.—Huggo

The entertainer of a carnival in London challenges the audience to resist one round fighting "One-Round" Jack Sander. His girlfriend works at the ticket box and a tall man hit on her. When he is challenged, he fights Jack and wins. He uses the money received for defeating Jack to buy a bracelet to the girl and she kisses him. Soon they learn that the man is the champion of box Bob Corby and his manager James Ware invites Jack to be tested in a fight. If he succeeds, he will be hired as Bob's sparring. He is successful and marries his girl. But she continues to see Bob and his jealousy forces him to ask James to climb in the world of box. But his jealousy also almost destroy his career and marriage.—Claudio Carvalho, Rio de Janeiro, Brazil