There is only one law in Gunbarrel Valley out in the wilds of Montana: the law of the gun. Old frontiersman, Joshua Vincent, is incensed that his fence wire is being cut and his stock rustled. Chief suspect is his northern neighbour, the young rancher, Matthew Saunders. So, he sends assassins to kill him and range war threatens to erupt. Meanwhile, pretty Polly Vincent is being held prisoner at her uncle's ranch, subjected to the lascivious attentions of her cousin, Grat, who vows to make her his wife. As bullets fly Matthew buckles on his trusty peacemaker. Can he rescue Polly? Can Matthew fight back against Vincent's overwhelming firepower?