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.
The relatives of a rich old woman unsuccessfully try to have her declared insane, so they can divide up her money. To show them that there are no hard feelings, she invites them to her estate for the weekend so she can decide to whom she actually will leave her money when she dies. Soon, however, family members begin turning up dead.
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.
A kidnapping, three airplane crashes and several fist-fights adds speed to the plot in which the plans of a new, faster airplane motor invented by brothers Tim and Jerry are stolen and suspicion falls on their office secretary Mary Stuart. But she can pilot an airplane with the best of them and she risks her life to save Tim. And when she gets kidnapped, Jerry regains his lost nerve in rescuing her.
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 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.
Dick Tracy goes up against a villain known as The Ghost, who can turn himself invisible.
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.
Deep in the African jungle, a baby named George, the sole survivor of a plane crash, is raised by gorillas. George grows up to be a buff and lovable klutz who has a rainforest full of animal friends: Tookie, his big-beaked toucan messenger; Ape, a witty talking gorilla; and Shep, a peanut-loving pooch of an elephant. But when poachers mess with George's pals, the King of Swing swings into action.
A young couple on the run take a family father as a hostage and are shocked to realize that he actually is a serial killer who just murdered the family. With the police on the outside and the killer on the inside they now have nowhere to run and nowhere to hide, all whilst trying to solve their relationship problems... This is an action packed thriller with tongue in cheek
A young girl is reared on a desert island by natives and led to believe that she is a goddess. One day an outsider comes to the island, and persuades her to accompany him to preach about the kindness and love she has experienced. She agrees, but she's soon confronted by the problems and travails of the "outside" world.
After the mysterious death of scientist Dr. Devin Villiers, Det. Frank Turner and his partner are assigned to protect Villiers' colleague, who revealed that a veteran soldier was subjected to an experiment with the objective of creating the ultimate national security weapon... an undetectable soldier. The experiment failed – with disastrous side effects.
Legless Southern inventor Dr. Arliss Loveless plans to rekindle the Civil War by assassinating President Ulysses S. Grant. Only two men can stop him: gunfighter James West and master-of-disguise and inventor Artemus Gordon. The two must team up to thwart Loveless' plans.