The Master Key

When the unscrupulous Carlos Manning discovers that an old Spanish land grant recently unearthed will leave a huge section of California real estate...

Lieutenant Commander John Byrne of the Naval Secret Service and his partner Pvt. Bill Riggers chase criminal Dr. Sin Fang, who is desperate to find a...

On the American frontier in the last decades of the 19th century, Billie is a female cowboy who fights a series of bad men in this film serial.

Fireman Bob Darrow invents an original chemical fire extinguisher, and his rival, Dan Mitchell, for June Madison, also has his eyes on Bob's...

Space hero Captain Video battles the evil Vultura on the planet Atoma.

Aimee is a young girl betrothed to a rascal, Hamid Bey. An American archeologist, Jack Ryder, arrives to help the girl escape ending up in Bey's...

Carter Holmes, master criminologist, must help the oft-kidnapped Ruth Stanhope to find the 9 daggers that will unlock the secret of the cursed...

Commando Cody, 'Sky Marshal of the Universe', works with American scientists Joan Gilbert and Ted Richards in the development of a flying suit and a...

In Africa, a deceased medical missionary's daughter in Africa carries on her father's work. Before long, she finds herself in danger from crooks and...

Janet Dale feels that there is a danger looming over her home but cannot put her finger on what it is. Days later her father disappears at her 18th...

When an unscrupulous banker ruins his family, a young man swears to bring him to justice, so he adopts a new identity, the mysterious Judex, and...

Adventures of an American Secret Service-girl in search of an important German secret during the war. Chapters: [1] “The Great Secret,”;...