Improved version of a well worked theme:- the battle of small ranchers against land-grabbing, ruthless Mr. Big. For here two shag-eared old lobos, Yakima and Slim break out of jail to help Yakima's son, Clarke, when he and other two bit ranchers are caught in a squeeze play that will run them out of their homes. The old boys prove useful in forcing boss Kellman's hand, in enlisting the aid of a US Marshal, in saving the day for Clarke and his friends. And they get their just rewards. Rousing range war.