The story takes place in medieval France. Poet-rogue Francois Villon, sentenced to hang by King Louis XI for writing derogatory verses about him, is offered a temporary reprieve. His hanging will be postponed for 24 hours, and in that time he must defeat the invading Burgundians and win the love of the beautiful Katherine.

Cooper is a Union Army officer who after being jilted by girlfriend, Virginia Bruce, volunteers on what could be a suicide mission. He volunteers to go behind enemy lines disguised in Confederate gray as a staff officer to Robert E. Lee. He's to ride to a certain plantation which is a local brigade headquarters and deliberately let himself be caught with maps showing false Union troop positions. Of course, the penalty, then as now, is execution.

Grace Livingston is leading a happy life in her small town, with her mother and father, being courted by two men, the steady but predictable Tommy Tucker and the more ambitious, flashy, and worldly Dick Loring, who seems closer to Grace in his desire for travel and adventure.