The day Chip Bennett and Weary Davidson came upon some slaughtered Flying U cows with their hind quarters skinned out, they knew that cattle rustlers were on the rampage. Then a hidden rifleman tried to shoot them out of their saddles—a warning that something even more sinister than rustling was happening. But even shrewd Chip never suspected that Big Butch Lewis was rounding up gunmen from all over Montana in a sweeping plan to make the range a stronghold for outlaws.