Dr. Eric Vornoff, with the help of his mute assistant Lobo, captures twelve men for a grisly experiment; His goal to turn them into supermen using atomic energy. Reporter Janet Lawton, fiancée of the local lieutenant, vows to investigate Vornoff's supposedly haunted house.

A ranger in Buffalo Gap has been killed and the trail leads to a gang headed by Bill Judd. When there is yet another killing, the sheriff seems remarkably hesitant to arrest the culprit and may be taking his orders from a mystery boss. Teaming up with Al's pretty sister and her Uncle Bob, Cheyenne and Fuzzy go in search of the mystery villain.

A theatrical producer puts aside his own success to boost the career of a talented singer.

Police Lieutenant Lacey, with aid from Coach Bettger, heads a crack-down on dope-peddling to high-school athletes. One kid dies from an overdose, two more kill a gas station attendant in an aborted hold-up attempt to get money to buy dope, and a third dies in a fall in a condemned empty building while fleeing from the law. With the aid of some outraged students, the dope pusher is brought to justi...

When Decker's gang holds up a stage, henchman Lefty takes a lady's rings. Later lefty accidentally exposes the rings buying ammunition and Cheyenne sees them. When Lefty tries to shoot Cheyenne he is captured. Now Cheyenne wants the rest of the gang and their leader.

Eddie Dean (Eddie Dean) and his partner Soapy Jones (Roscoe Ates), under government orders, proceed to the ranch of J.C. Morgan (Shirley Patterson to buy cavalry remounts for the Army. At the ranch, they find out that J.C. is a girl. The nearby town of Dow City is under the control of a lawless trio headed by Trigger (Lee Roberts, Clem Kensington (Foxy Callahan) and Joe Morino (Dennis Moore). A me...

A theatrical producer puts aside his own success to boost the career of a talented singer.

When Decker's gang holds up a stage, henchman Lefty takes a lady's rings. Later lefty accidentally exposes the rings buying ammunition and Cheyenne sees them. When Lefty tries to shoot Cheyenne he is captured. Now Cheyenne wants the rest of the gang and their leader.

Four survivors of a ship wreck are stranded on a deserted island, including a woman and the man she believes is responsible for the murder which her brother is in prison for.

Two men search the jungle for a woman who has been captured by a tribe of murderous gorillas. When they finally find her, they must fight off attacks by the gorillas, who are determined to keep her.

Dr. Eric Vornoff, with the help of his mute assistant Lobo, captures twelve men for a grisly experiment; His goal to turn them into supermen using atomic energy. Reporter Janet Lawton, fiancée of the local lieutenant, vows to investigate Vornoff's supposedly haunted house.

A city boy arrives in his late mother's birthplace to discover the locals have been pestered by a cougar.