Sergeant Hap Doan, heartbroken over the mechanization of his beloved Nineteenth Cavalry, goes on a drinking binge. Despite his initial reluctance, he helps train a group of new draftees into capable soldiers. After his horse, Cantigny, is killed in a tank explosion, Hap goes AWOL and is court-martialed, receiving a dishonorable discharge. However, he is secretly tasked by his commanding officer to infiltrate a gang of German spies who believe they can trust the disgruntled ex-sergeant.
The Bugle Sounds
A battle-weary cavalry sergeant struggles with the impending decline of his unit, and in a state of despair, he indulges in a drinking binge, lamenting his impending departure from the military.
