After feared outlaw and revolutionary Pancho Villa kidnaps his grandchildren, railroad tycoon John Shaughnessy, known as the Colonel, ventures to El Paso with his adopted son and a band of hired cowboys on a rescue mission.

When the Colonel's famous Valle del Sol ranch is raided, it was Pancho Villa who not only stole the cattle but also murdered the ranch manager. Even worse, Villa's henchmen abduct the Colonel�s grandchildren in another daring raid only days later. Frantic, the aging patriarch and his adopted son race to El Paso, hoping to gather a group of cowboys brave enough to hunt down the generalissimo on his own turf. But their deep pockets and political clout mean next to nothing in a crumbling nation rife with communist sympathizers. When a twist of fate unites his party with that of Johnny Ollas, an aspiring matador whose wife has also been kidnapped by the marauding revolutionaries, the two factions gallop off on an extraordinary manhunt through some of the most inhospitable terrain on earth: the vast and snake-ridden Sierra Madre.