The Night of Jack O'Diamonds

James and Artemus arrive in Mexico with a present for the Mexican president: a beautiful Arabian horse. Within minutes of their arrival, however, the horse is stolen by a group of outlaw bandits. Our heroes must battle the hot Mexican desert to get the horse back before the outlaw Mexican army beats them to it.

James et Artemus apportent un pur-sang comme cadeau au président mexicain, mais l'animal est subtilisé par des hors-la-loi au cours du voyage...

West y Gordon escoltan un invaluable pura sangre árabe, que es obsequio del presidente Grant al presidente Juarez. En el camino a su destino, deben enfrentar la amenaza de Gregorio, líder de las tropas imperialistas.