Although ostensibly the grand-son of the legendary hero, Clayton Moore's Ken Mason is little more than a cowboy in a black mask in this 12 chapter Republic serial. Mason, the head of the telegraph line work crew, assumes his ancestor's trade-mark mask (but not whip) in order to prevent a local czar (Roy Barcroft) from sabotaging the burgeoning telegraph line. Pamela Blake, a brunette starlet formerly known as Adele Pearce, played Mason's imperiled girlfriend, and the serial also benefitted from the usual competent work of Republic's great stunt-performers, including Dale van Sickel, Tom Steele, Eddie Parker, and Joe Yrigoyen.

A young soldier uncovers a ring of spies when he investigates his brother's mysterious murder.

A delivery boy for a flower shop, who thinks of himself as an amateur detective, finds out that his boss is mixed up with a foreign espionage ring.

A feud develops between the settlers and the railroad detectives in Red Rock Valley. Clem Barstow sends for Billy the Kid and Fuzzy Jones to help.

Two cowboys try to protect railroad workers from rampaging Indians.

An outlaw saved by a Mexican girl hunts the holdup partner who shot him in the back.

Famous pioneer aviator Dick Merrill was front-page news in the 1930s, so it's understandable that he was summoned to Hollywood to star in his own film. In "Atlantic Flight" he's top-billed as a pilot who undertakes a dangerous mission to transport medicine to an ailing friend. Monogram.

A test pilot and his weather observer develop a "robot" control so airplanes can be flown without pilots, but enemy agents get wind of it and try to steal it or destroy it.

A man escorts a wagon load of Kentucky rifles through Indian territory and must find a way to get through without losing the rifles to the Indians. Unfortunately the Indians know about it, and give the occupants an ultimatum: either the rifles or their lives.

Tex put the Kern gang away once but they have returned with reinforcements and have take over the town of Red Rock capturing the townsmen and forcing them to work for them in the gold mines. Dave and Tex then organize the ranchers into the Territorial Rangers. After blowing up the mines to keep the gang from getting the gold, they are ready for the showdown between the two sides. Written by Maurice VanAuken

Jim Harvey is hired to guard a small wagon train as it makes its way west. The train is attacked by Indians and Harvey, hoping to persuade Aguila, the chief, to call off the attack due to Harvey's having saved his son's life, leaves the train to negotiate. He is captured and the rest of the train is wiped out except for two sisters. Escaping and showing up in town later, Harvey is nearly hanged as a deserter, but gets away. Eventually caught by the sheriff and his posse, they are attacked by Indians. This time the Indians are defeated and Aguila, captured and dying, reveals the identity of the white man who engineered the initial attack on the wagon train, just as the perpetrator rides up behind them.

One dark and stormy night, an escaped convict, an embezzler, a runaway daughter, her intended and her father, and a gangster take refuge in a remote inn called "The Black Raven" after the nickname of a second gangster who owns it; and murder ensues.

A newspaper publisher's daughter suffers from neglect by her parents. She and her friends turn to crime by dressing up like men, holding up gas stations, raping young men at gunpoint, and having makeout parties when her parents are away. Their "fence" gets them to trash the school on request of sinister un-American clients, and they run afoul of the law, apple pie, and God himself.

Three beatniks are brought together to rob an armored car, only to face betrayal from amongst their ranks.

Chinese sleuth Charlie Chan discovers a scheme for the theft of government radar plans while investigating several murders.

Tom Kenyon and his sidekick Pierre La Farge are hired by rancher Mike O'Day who, with his daughters Toni and Sugar, provides wild horses for the government remount station.