Again and again, the ruthless Mexican bandit, Pedro Cortina, and his raiders swooped down onto Lone Star soil and left a wake of robbery, arson and murder, until the Rio ran red with blood. Outnumbered 100 to 1, and with time running out on the men on the side of the law, Ranger Jim Hatfield plunged into savage pursuit of the border killers, to pit his guns and fists against the cruellest foe in Texas