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.
Gary Cooper
as Capt. James Braydon
Mary Brian
as Barbara Calhoun
Phillips Holmes
as Capt. Robert Darrington
James Neill
as Vance Calhoun
Morgan Farley
as Lt. Tom Wendell
Guy Oliver
as Gen. Ulysses S. Grant
John Elliott
as Gen. Robert E. Lee
E.H. Calvert
as The Colonel
Virginia Bruce
as Elizabeth
Elda Voelkel
as Lucy Cameron
William Le Maire
as The Sentry
Freeman Wood
as Elizabeth's Lover