Dick Lazarus and his raiders are feared on both sides of the Rio Grande. Loandowners and townspeople alike have been victim of his vicious attacks, and Lazarus's operation of blackmail and threats means no one is willing to assist the lawmakers in their efforts to capture him. Lazarus's increasingly daring crimes see him raid the ranchero of the Robles family in Mexico. This time he escapes not only with a herd of horses, but with a hostage - Luis Robles - who should fetch a hefty fancom.