Cooper and Lancaster portray Benjamin Trane and Joe Erin, two daredevil mercenaries who journey to Mexico in search of adventure -- and cold hard cash -- during the 1866 revolution. But they get more than they bargained for when the wealthy and beautiful Countess Duvarre (Denise Darcel) hires them to escort her (and a fortune in gold!) to Emperor Maximilian's fighting forces in Vera Cruz. The trial is fraught with danger, betrayal and murder%u2026and when Ben is swept up in the revolutionaries' fervor, he and Joe find themselves at odds with the Mexican Army -- and each other!