Sent to investigate a payroll robbery, Marshall Rocky meets his old friends Ken, Eddie, and Max. He has the serial numbers and when Pop puts on his medicine show they get one of the bills. This enables Ken to see through Sorrell's scheme that threw the blame on an innocent rancher and he sets out to prove it. Written by Maurice Van Auken

Two cowboys try to protect railroad workers from rampaging Indians.

Learning that Montana is about to become a state and that property values will rise rapidly, Caldwell is using his outlaw gang to force the ranchers off their land.

A good nurse ruins her career by covering up for her sister's careless mistake.

Carl Beldon has disappeared and the Trail Blazers have been sent to investigate. Arriving in town, they find that 'Honest John' controls everything. He even prints his own money. He also has a gang and they set out to finish off the heroes.

The Trail Blazers are bringing in a prisoner to stand trial for bank robbery, when several attempts are made to kill him; convinced of the man's innocence, they arrange a trap for the real thieves.

US marshals Ken, Hoot and Bob stop a gang dressed as Indians from robbing the stage. After getting repairs at the relay station, but before they get to town, another trap is set, but they get away. In town, they search the stage and find nothing. But hidden in the axle grease can are diamonds. Polini wants them cut into smaller diamonds so that he can easily dispose of them. Throughout this Western, the courageous trio faces off against cunning opponents, including the gang's merciless leader (Ian Keith) and an unsuspecting banker (Karl Hackett).

Eddie and his sidekicks have been called in to help get a new telegraph line through. Dawson and his men along with his stooge Judge are out to stop them. When Eddie and the boys catch three of Dawson's men destroying telegraph equipment, the Judge releases them and this leads to the showdown between the two sides.

When a fed-up businessman tires of watching gold shipments disappear without a trace, he calls in the Trail Blazers (Ken Maynard, Hoot Gibson and Bob Steele) -- a legendary trio of law enforcers -- to find the gold and figure out who's behind the thefts.

When a band of American Indians breaks a treaty with the federal government, U.S. Marshals Ken Maynard and Hoot Gibson hit the trail with captured outlaw Duke Dillon (Jack La Rue) to find out what sparked the uprising. They discover clues that point to corrupt Indian agent John Hampton (Kenneth Harlan), but meanwhile, the bandit Dillon pulls a fast one on the marshals, and soon everybody's getting ready for a showdown.