Cyril Hamilton is a chicken-hearted easterner who heads west. He makes up for his past misdeeds by rescuing a Cavalry colonel's daughter Marcia West from Mexican bandidos.
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.
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.
Two British officers are assigned to collect information to convict Captain Kidd of piracy.
Beyond Hell's Gate Pass is territory controlled by a man who calls himself King Carter; he uses a variety of schemes to prevent the railroad from being built, for fear it will finish his control of (what he considers) his land.
Arrested for speeding by highway patrolman Bill Rolph (Robert Paige), J.W. Brady (Robert Middlemass), the president of an oil refinery, offers him the assignment to find the culprits who have wrecked his gas stations, hi-jacked his trucks and attempted to blow up his plant.
An expedition arrives on an uncharted jungle island to rescue the local natives, led by a jungle boy, from a volcano that is about to erupt.
Jerry Blake (aka Federal Operator 99) teams-up with Joyce Kingston to thwart the plans of escaped crime boss Jim Belmont.
Escaped Prisoner 39013 impersonates the rich and influential Horace Granville, allowing him to create a variety of disasters. Fortunately, he is thwarted repeatedly by three daring circus daredevils.
A young girl journeys to Africa to find her father, an explorer who vanished in the jungle.
A mechanic works for his sweetheart's father, who builds racing boats. He begs for and gets the chance to race a new-design boat, but his rival gets him intoxicated before the race and he wrecks the boat. Now he has to make good and show he has the right stuff.
A criminologist and a government agent team up to expose a ring of German spies.
A newspaperwoman finds trouble aplenty when an Inca tribe believes her to be the reincarnation of their long-lost princess.
A police detective is caught up in a plot to steal two million dollars in bonds.
Captain Angus Swope (Noab Beery), known as The Black Yankee, skipper of the Golden Bough, treats his crew shamefully and he treats women no better, as evidenced by his handling of a woman he has abducted, together with her baby daughter, Mary (Sally Blaine), from seaman Newman (Willard Robertson). When the woman dies as a result of his cruelty, he brings up Mary as his own daughter.
In a banana republic, way south of the Texas border, a dumb-Dora American girl, Norma (Olive Borden), lets her ruby-red lips promise more than she is willing to deliver, and she finds herself a prisoner in a notorious dance-hall/brothel. But her American aviator boyfriend, Barry Blake (John Boles), is flying to her rescue. He does just that but, alas, they are quickly captured by a gang of outlaws. Possibly the many expensive pieces of jewelry she has gathered from the many male friends she has made along the way, including El Presidente, captured the outlaws' attention.
Daisy Smith (Marceline Day), a floater and non-desirable citizen in most societies, seeks refuge on a tropical island in the South Seas. She meets Jim Curtis (Don Alvarado), another society-outcast and a piece of human driftwood, and a romance takes place that regenerates both and they sail back to the United States determined to start life anew.
Daniel Robin has become mixed up with a band of criminals known as "the 13," and is shot when he refuses to do their bidding. His daughter Ruth, brought home from boarding school, reaches his bedside before he expires. He tells her that she will be given thirteen keys. Instructions will be provided with each key and, if she follows the instructions, she will eventually fully learn of her birthright. Many adventures then follow as Ruth attempts to solve the puzzle of each key and establish her true birthright.
The TARDIS crew lands in the Himalayas of Cathay in 1289, their ship badly damaged, and are picked up by Marco Polo's caravan on its way along the fabled Silk Road to see the Emperor Kublai Khan. The story concerns the Doctor and his companions' attempts to thwart the machinations of Tegana, who attempts to sabotage the caravan along its travels through the Pamir Plateau and across the treacherous Gobi Desert, and ultimately to assassinate Kublai Khan in Peking, at the height of his imperial power.
An unauthorised adaptation of the novel by Alexandre Dumas. Produced by Selig with the intent of beating Adolph Zukor's adaptation to the screen, Zukor successfully sued and the prints were ordered to be destroyed. The film is now lost.