Night-riders wiped out an entire tribe of Navajo Indians. The killers said they were getting even with the Indians because they in turn had shot down old Sam Claymore. But when Shane Preston and Jonah Jones rode in, they had their doubts. There was more going on in that corner of Arizona than met the eye, and one of the dead Indians had been a friend of Shane's from his army days, so that made it personal, too.
Shane and Jonah set about uncovering the truth of the massacre, but before it was solved they found themselves back in that canyon of death, and digging their own graves ...