Big, brash and fearless, Buffalo Jones is in pursuit of the greatest mountain lion ever spotted in the remote Arizona desert. Determined to bring the beast home alive, Jones leads a colorful band of brothers into a wild land, across the Colorado River to Buckskin Mountain at the red mesa rim of the Grand Canyon. But while Jones has foresworn all killing, even smashed his rifle on a wagon wheel in a vow to save the species, he and his men are entering a fight for their lives. If Apaches, stampedes of wild horses or rattlesnakes don't get them, another enemy will: roaming packs of the one beast who fears no man...