Hidden Dangers

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

A young newspaperwoman travels to a South Seas island to search for buried treasure.

The evil and masked "Gargoyle" is sabotaging all of America's industrial plants. It is up to the Spider to save the country.

Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth. Luckily, heroic young Flash Gordon is on hand to...

King of the Candian riding police is up against Japs and Nazis who are about to invade Canada. They just want to clear the way with a new futuristic...

Filmed in the Sierra Nevada mountains near Sonora, California, this Universal serial is Universal's 40th sound-era serial. Eagle Scout Bruce Scott,...

A movie serial in 12 chapters: The famous comic strip character is on a mission to protect a secret tunnel passage between China and India.

The serial detailed the experiences of Kathlyn Hare, the pretty daughter of an explorer. Kathlyn resided in a mythical India, fighting off unwanted...

The 15 chapter story involves the heroine being protected by a shadow with burning eyes. There's also a cloak of invisibility, some hypnotism and a...

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

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...

As heiress to a large fortune, Marguerite is able to satisfy her love for beautiful clothes and a taste for adventure, while confronted by a...