The Hope Diamond Mystery

Irrepressible Helen Rhinelander, the daughter of a railroad president. A dastardly villain, Segrue, however, desires not only Helen but also the plans for a new railroad. Happily, Helen's childhood sweetheart, Paul Storm, now an engineer, is right there to protect the damsel-in-distress through the serial's 15 exciting chapters.

The ruffles king forbids music for his kingdom and gets cursed for it. The king's right hand secretly wishes to take the throne and tries to kill the king, but the cursed king just would not die. Later when the king's right hand figures out how to kill the king and takes over the kingdom. The left-for-dead king gets local's support whom secretly kept practicing the art of music aids the king for the final battle to get the kingdom back from murderous king's right hand.

The serial detailed the experiences of Kathlyn Hare, the pretty daughter of an explorer. Kathlyn resided in a mythical India, fighting off unwanted advances from a handsome native, Umballah, when not battling an endless array of ferocious jungle fauna.

Bio-technologist Govind K Somaiyya sets about on a precarious journey to India to retrieve a vial containing a deadly virus and prevent it from reaching the wrong hands of an ex-CIA agent and deadly assassins.

Filmed in the Sierra Nevada mountains near Sonora, California, this Universal serial is Universal's 40th sound-era serial. Eagle Scout Bruce Scott, leader of Martinsville Troop Number One, and his pack sets off in search of lost treasure and finds adventure

When 13 year old Maria Merryweather's father dies, leaving her orphaned and homeless, she is forced to leave her luxurious London life to go and live with Sir Benjamin, an eccentric uncle she didn't know she had, at the mysterious Moonacre Manor.

A simple diamond heist leads Lupin into the machinations of a bizarre cult based around the prophecies of Nostradamus. They kidnap Julia, the daughter of Douglas, a wealthy American who is seeking the presidency, along with Lupin's diamond. At stake is the lost book of prophecy Douglas holds in the vault at the top of his skyscraper.

When a headstrong street orphan, Seiya, in search of his abducted sister unwittingly taps into hidden powers, he discovers he might be the only person alive who can protect a reincarnated goddess, sent to watch over humanity. Can he let his past go and embrace his destiny to become a Knight of the Zodiac?

The Aztecs summoned a Tyrannosaurus Rex to keep Cortes and his army out of Mexico. Now they need the Conquistadors' help to stop the T-Rex from killing them all.

A Martian invader crashes his spaceship conveniently close to the workshop of a scientist who is developing an interplanetary craft. If the extraterrestrial Purple Monster can complete the rocket ship and return to Mars, he will be able to start a full-scale invasion of Earth. Good thing Craig Foster sets out to thwart the Monster's mission!

Frodo Baggins and the other members of the Fellowship continue on their sacred quest to destroy the One Ring--but on separate paths. Their destinies lie at two towers--Orthanc Tower in Isengard, where the corrupt wizard Saruman awaits, and Sauron's fortress at Barad-dur, deep within the dark lands of Mordor. Frodo and Sam are trekking to Mordor to destroy the One Ring of Power while Gimli, Legolas and Aragorn search for the orc-captured Merry and Pippin. All along, nefarious wizard Saruman awaits the Fellowship members at the Orthanc Tower in Isengard.

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.

Dr. Ernst Grood , having already dominated the planet Ergro, now intends to take over the control of the Earth. Unfortunately for him, reporters oppose his sinister designs.

Greedy traders have kidnapped a researcher, hoping he will reveal the location of a treasure in a hidden village. Family and friends of the researcher come looking for him. Adventure ensues.

A team of two-fisted insurance investigators (one of whom disguises himself as The Masked Marvel) endeavor to discover and thwart the loathsome saboteur Sakima.

Congo Bill is hired to locate an heiress lost somewhere in Africa.

A few decades after the destruction of the Inca Empire, a Spanish expedition led by the infamous Aguirre leaves the mountains of Peru and goes down the Amazon River in search of the lost city of El Dorado. When great difficulties arise, Aguirre’s men start to wonder whether their quest will lead them to prosperity or certain death.

Kit Cardigan seeks the killer of his father...among other plot threads leading up to the famous historical incident.

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

Mystery and adventure, surrounding a stolen rubber harvest.