The young Alberto Ruotolo leave the country cottage to go for the sharpshooter. But the command does not pull good air, three riflemen arrogant and unruly bear much disorder as anger Marshal Nero.
Two small boys are playing in a wood. The younger boy has a revolver and, not understanding that the gun differs from his toy pistol, plays 'highwayman' on the road and holds up a cyclist; the gun goes off, killing the cyclist.
After the American Civil War, mercenaries travel to Mexico to fight in their revolution for money. The former soldier and gentleman Benjamin Trane meets the gunman and killer Joe Erin and his men, and together they are hired by the Emperor Maximillian and the Marquis Henri de Labordere to escort the Countess Marie Duvarre to the harbor of Vera Cruz.