Chester Wooley and Duke Egan are traveling salesmen who make a stopover in Wagon Gap, Montana while en-route to California.
The head of the local citizen's committee, Jim Simpson, recalls a law whereby the survivor of a gun duel must take responsibility for the deceased's debts and family.
To make matters worse, Chester must work at the saloon at night to repay Hawkins' debt to its owner, Jake Frame.
Meanwhile, Duke still plans to go to California and tries to get Judge Benbow to marry Mrs. Hawkins, in order to free him and Chester from their obligations.
Frame eventually confesses to Hawkins' murder; Duke and Chester are cleared and allowed to leave town, but not before they admit that the railroad rumor was fabricated by them.
Bowers says they worked on it for two hours, envisioning it as a vehicle for James Stewart and Marjorie Main, and sold it to Universal for $2,500.
Costello blamed their agent, Eddie Sherman, for upsetting his father the night before (triggering the heart attack) and fired him.