Only the fierce Modocs knew the terrible meaning of each beat of the Drum !

President Grant orders Indian fighter MacKay to negotiate with the Modocs of northern California and southern Oregon. On the way he must escort Nancy Meek to the home of her aunt and uncle. After Modoc renegade Captain Jack engages in ambush and other atrocities, MacKay must fight him one-on-one with guns, knives and fists.