
Jim Smith aka The Oklahoma Cyclone
Carmelita Carlos

Slim

McKim - aka Black Diablo

Rawhide - Henchman

Henchman
Shorty - Henchman (as Shorty Hendricks)

Don Pablo Carlos (as Hector Sarno)

Reporters Clark Kent and Lois Lane arrive in the small town of Silsby to witness the drilling of the world's deepest oil well. The drill, however, has penetrated the underground home of a race of small, furry people who then come to the surface at night to look around. The fact that they glow in the dark scares the townfolk, who form a mob, led by the vicious Luke Benson, intent on killing the strange people. Only Superman has a chance to prevent this tragedy.

Cowboy Phil Stone gets a job as foreman on a ranch owned by pretty young Isabel Hastings. He discovers that ruthless rancher Jeff Kopp has a claim on Isabel's ranch, and that if she dies unmarried before she turns 21, Kopp will get her ranch. When Isabel turns down a marriage proposal by Kopp's son Rudy, Kopp decides to kill her and get the ranch for himself, and hires a notorious killer, "Cyclops", to do the deed.

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.