The Great Secret (1917)

The Secret of Treasure Island

A variety of people are searching for a long-hidden treasure somewhere on an island. Chapters: 1. The Isle of Fear, 2. The Ghost Talks, 3. The Phantom Duel, 4. Buried Alive, 5. The Girl Who Vanished, 6. Trapped by the Flood, 7. The Cannon Roars, 8. The Circle of Death, 9. The Pirate's Revenge, 10. The Crash, 11. Dynamite, 12. The Bridge of Doom, 13. The Mad Flight, 14. The Jaws of Destruction, 15. Justice

The Fortieth Door

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 harem, but it takes the boy ten episodes to finally succeed.

The Adventures of Frank Merriwell

A 12-episode serial in which scholastic sports star Frank Merriwell leaves school to search for his missing father. His adventures involve a mysterious inscription on a ring, buried treasure, kidnaping and Indian raids. He saves his father and returns to school just in time to win a decisive baseball game with his remarkable pitching and hitting.

Jungle Drums of Africa

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 a local witch doctor.

The Secret Code

A superhero known as The Black Commando battles Nazi agents who use explosive gases and artificial lightning to sabotage the war effort.

King of the Congo

An Air Force captain is assigned to find some missing top-secret microfilm.

The Crimson Ghost

A criminal mastermind known as The Crimson Ghost is out to steal a device called the Cyclotrode, which can short-circuit all electrical current on the planet.

The Royal Mounted Rides Again

In time-honored fashion, a couple of supporting players -- George Dolenz and Bill Kennedy -- found themselves elevated to starring roles in this minor Universal serial. They played Royal Canadian Mounted Police officers investigating the murder of a miner. The story, of course, was less important than speed and action, which directors Ray Taylor and Lewis D. Collins delivered in typical slap-dash Universal style. Starlet Daun Kennedy did not make much of an impression as the imperiled leading lady, and former star Robert Armstrong (of King Kong fame) was wasted in a subordinate role. Rondo Hatton, a non-actor whose grotesque appearance (caused by acromegaly, the so-called "Elephant Man" disease) was tastelessly exploited by Universal in the '40s, appeared as one of the outlaws.

The Sea Hound

Columbia's 34th serial production starring Buster Crabbe, the Serial King himself

The Adventures of Tarzan

Tarzan spurns the love of La, Queen of Opar. When he isn't trying to keep the Bolshevik Rokoff and Clayton (pretender to the Greystoke estate) from reaching Opar, he is attacked simultaneously by two lions, dropped into a pit when a volcano splits the ground, nearly sacrificed by sun worshipers, and so on.

Thundering Romance

A cowboy sets out to help a pretty young girl who is about to lose her ranch when crooks plan to foreclose on it because she doesn't have enough money to make her mortgage payment. He puts together a cattle drive in order to sell the herd to raise the money to pay off the note, but when the crooks hear about this, they make plans to stampede the herd along the way.

Jack Armstrong

15 episode serial where Jack Armstrong, the All-American Boy, battles the evil Dr. Grood, who has placed a death ray aboard his spaceship orbiting Earth.

The Woman in the Web

An adventure serial released in 1918

Drums of Fu Manchu

The nefarious Dr. Fu Manchu searches for the keys to the tomb of Genghis Khan, in order to fulfill a prophecy that will enable him to conquer the world. His nemesi, Dr. Nayland Smith and his associates fight to keep the evil doctor from getting his hands on the keys. In 1943 the serial was edited together into a feature movie also called Drums of Fu Manchu.

The Vigilantes Are Coming

A masked hero called "The Eagle" leads California ranchers in a struggle against Russian Cossacks who are plotting to take over California and turn it into a Russian colony.

Robinson Crusoe of Clipper Island

A 14-episode serial in which Mala, a Polynesian in the employ of U.S. Intelligence investigates sabotage on Clipper Island. A gang of spies causes the eruption of a volcano, for which our hero is blamed. He convinces the local Princess Melani of his innocence and helps her ward off a takeover by rival high priest Porotu.

Flash Gordon

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 lead an investigative mission into outer space and onto the speedily approaching planet. There, he and his best girl, Dale, who is along for the ride, learn that Ming, the devious ruler of Mongo, has purposely put the planet on a collision course with Earth, and only Flash can stop him.

Into the Net

Madge Clayton, a society girl, mysteriously disappears. The police suspect a master criminal is behind the girl's abduction, but her brother, Bob, and fiancé, Bert Moore, help with the search. They unearth a scheme to kidnap another girl, Natalie Van Cleef, and the evidence takes Bob and Bert to an estate on Long Island.

The Adventurer

American mining engineer Jim McClellan is in love with Dolores de Silva, daughter of the deposed president of a Latin American country. He becomes involved in the revolution....

The Strings of Steel

The Strings of Steel is a silent Action serial. Episode titles: 1. The Voice on the Wire 2. The First Central 3. Fighting for Love 4. The Power of Might 5. Kings of the Wire 6. Voice of the Continent 7. Telephone Poles 8. War of the Wire 9. When Lightning Strikes 10. Love and Victory.

Curucuru and Friends: The Secrets of the Rainbow Tree

The movie takes place between Seasons 1 and 2. The Green Forest Village hosts a festival in celebration of the 1000th anniversary of the large tree growing in the middle of the village. While Curucuru and his friends are helping in the festival, they learned that tree's vitality is due to a legendary item call the Pingya, which gives it Eternal Love and Life. But in the midst of the festival, a bunch of Pirate Hyenas came to the village and stole the legendary item, causing the tree to wilt. Now it's up to Curucuru and his pals to get it back from the pirates, before things can go worse. But amid-st the actual troubles they face, the kids also encounter a strange Tiger child, who is connected to the incident.

JoJo's Bizarre Adventure: Phantom Blood

An adaptation of the original five volume arc of the popular JoJo's Bizarre Adventure manga, covering the Phantom Blood chapters. Jonathan Joestar is an aristocratic boy whose life is suddenly turned upside down by a mysterious new boy who arrives, Dio Brando. Dio has a connection to his father, and over time, a rivalry forms as Dio becomes obsessed with a mysterious, ancient, and mystical stone mask that Jonathan's father keeps. This film has not been publicly released outside of its original limited run in Japanese theaters and is considered virtually lost.

The Purple Monster Strikes

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!

Manhunt of Mystery Island

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.

The Green Hornet

A newspaper publisher and his Korean servant fight crime as vigilantes who pose as a notorious masked gangster and his aide.

Jungle Girl

Dr. John Meredith has been driven from civilization by the criminal activities of his twin brother Bradley Meredith. With his infant daughter, he settles in the African jungle, where his ability to cure the native ills has resulted in his virtual control of the Masamba tribes, who possess vast diamond mines coveted by a gang of crooks.

Sky Raiders

Captain Bob Dayton and Lieutenant Ed Carey are partners in a company called "Sky Raiders" which seeks US government contracts for its inventions. Enemy spies attempt to steal, sabotage and discredit the inventions and founders of the company.

Adventures of the Flying Cadets

Four youthful cadets are implicated in a series of murders, and must attempt to clear themselves of suspicion.

G-Men Never Forget

An escaped criminal impersonates a Police Commissioner, causing no end of trouble to a determined Federal Agent.

King of the Wild

Richard Grant, imprisoned in India for a crime he did not commit, escapes and makes his way to Africa.

Under the Yoke

As described in a film magazine, when Maria Valverda (Bara) refuses the attentions of Diablo Ramirez (Nye), he starts an insurrection among the native Filipinos. Maria's father Don Ramon is killed and Maria is held hostage. She gets word to Capt. Paul Winter (Roscoe) of the American troops in Manila and he comes to her assistance, but his troops are outnumbered and they are made prisoners by the revolting revolutionists. Maria and Paul attempt to escape, but they are caught and brought back. At the Manila headquarters, trouble is suspected and reinforcements are sent. Before long, the revolt is subdued and peace reigns over Maria's home, and happiness over the betrothal of Maria and Paul. This film is lost.

The Lost Planet

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.

Jungle Raiders

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.

The Masked Marvel

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

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

The Monster and the Ape

A famous scientist invents a humanoid robot (the titular "monster"), so a greedy rival scientist plans to steal it for use in his criminal plans. His henchmen often kidnap a trained gorilla (the titular "ape") from the zoo, to aid in the schemes.

The Vigilante: Fighting Hero of the West

Columbia's 33rd serial (made between "Jack Armstrong" and "The Sea Hound") was based on the character that first appeared in "Action Comics" No. 42.

Under Two Flags

The Legion's mascot, Cigarette falls for an Englishman, Bertie Cecil (Herbert Heyes), and when he is sentenced to a firing squad, she heroically takes the bullet herself.

The Green Archer

The struggle over the Bellamy estate ends with Michael Bellamy accused of murder and killed on the way to prison, while his brother Abel Bellamy takes control of the estate for his own nefarious plans.

Lost City of the Jungle

A movie serial in 13 chapters, and Lionel Atwill's final film: Following the end of WWII, war-monger Sir Eric Hazarias sets the wheel in motion for WWIII. His search for Meteorium 245, the only practical defence against the atomic bomb, leads him to mythical Pendrang. Obstructing his sinister plan to rule the world are Rod Stanton, United Peace Foundation investigator, Tal Shan , Pendrang native, and Marjorie Elmore, daughter of scientist Dr. Elmore, unwilling assistant to Sir Eric.