Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.

In 17th century France, young d’Artagnan wants to join the King’s Musketeers, but instead befriends three legendary musketeers — Athos, Porthos, and Aramis — and together, they become embroiled in…

Government agents try to thwart smugglers, while some sort of plot unfolds, about a hidden treasure revealed by cursed coins.

Dick Tracy battles spies and saboteurs in his efforts to bring to justice the Stark gang, a criminal family led by the vicious Pa Stark.

World War I ace Dick Courtney derides the leadership of his superior officer, but he soon is promoted to squadron commander and learns harsh lessons about sending subordinates to their…

Man-woman team of investigators uncover a gang whose mad scientist leader has developed an invisibility chemical and plans to build a mercenary army of invisible men.

Secret Service agents try to solve the theft of treasury banknote plates.

U. S. Navy Lieutenant Gregg Masterman, of The Harvard and Boston Back Bay Mastermans, learned about the sea while winning silver cups sailing his yacht. He climbs swiftly in rank,…

The story of seven people: their lives and love affairs in Madrid during the Civil War.

A heavy condensation of the 1936 serial Flash Gordon, with altered musical score. Flash Gordon, Dale Arden and Dr. Hans Zarkov visit the planet Mongo to thwart the evil schemes…

A scientist uses an earthquake machine to threaten the city, and only Superman can stop his extortion plan!

American racketeer Jimmie Dean travels to England, where he assumes the identity of a Canadian whom he has been falsely accused of murdering. Jimmie is then forced to join the…