When things get hot for them in the city, gang boss Mack takes his men west to run their protection racket scheme. The FBI sends Bob Blake to investigate and he finds trouble on the Hess ranch. Touring the ranch he finds the gangsters shooting cattle. He trails them to their hideout only to be caught and made a prisoner.

Good-natured troublemaker "Cyclone" Tom Saunders is hired by a ranchers' association manager to investigate recent cattle rustling at one of their ranches and to see if a pair of nesters have anything to do with it. After discovering the nesters, pretty Betty Powell and her rickety old father, are incapable of rustling, Tom instead turns his attention to the huge, swaggering bully of a foreman, Nate Lenox.