The ravishing widow Mrs. Lowe (Ann Margaret) has just one wish: she wants the gold her late husband stole to be recovered and returned to its rightful owner, restoring her family's good name. The only problem is, she lacks the grit and guns needed to get it back. Lane (John Wayne) is a lightning fast gunman who doesn't sell himself short. When Mrs. Lowe cajoles him to help hunt down the stolen gold, he accepts, thinking it will be an easy day out in the Mexican country. The treasure hunt turns out to be more dangerous than they planned, however, when they encounter the villainous Pinkerton Man (Ricardo Montalban) and his horde of Mexican outlaws. As Lane and Mrs. Lowe search for the stolen booty and evade Pinkerton and his thugs, they develop a curious affection for one another and realize that love is more precious than gold.
A western with romance, TRAINROBBERS, reunites director Burt Kennedy and actor John Wayne (they worked together in 1967's WAR WAGON as well). Together they produce a heart-pumping shoot ?em up extravaganza which captures the true color and verve of the wild west.