Oliver Price, son of an army colonel, chooses to follow in his father's footsteps, regardless of his father's opposition, who would have liked to make him a lawyer. Enlisted as a private, Price is sent, by pure chance, to Fort Benton, the military garrison commanded by his father. The theft of an ammunition wagon by some Cheyennes, made possible by a lack of the young Price, would seem to offer the colonel the pretext to cut short his son's military career...