To avert a bloody range war, Lester Dukes, the governor of Texas, dispatched his two top Enforcers, Yancey Bannerman and Johnny Cato, to Wolf Creek Valley. Cattleman Clint Garrett wanted all that land for himself and was in no mood to share it with homesteaders, much less a sheepman.
Yancey and Johnny bought into the situation posing as gunmen-for-hire, but quickly discovered that there were other forces at work, most notably the gunfighter Hondo Rhodes, whose gang inhabited the land just the other side of Wolf Creek itself. Few people had ever dared to cross that stretch of water, and those who did rarely came back. But the Enforcers didn't intend to let a simple creek stop their investigation, even though it was known locally as ... the Lobo Line.