It is 1865 and Union prisoners use a military balloon to escape a Southern prison camp near the end of the Civil War. The balloon drifts for days and finally lands on a mysterious volcanic island with very unusual inhabitants. Also landing, in a better aircraft, is Rulu, a visitor from Mercury. She seeks a radio-active material that will enable her to manufacture an explosive that will destroy the world or, at least, the portion known as Earth in this 15 Chapter Serial from the 1950s.
After years of prospecting, Jonathan finally strikes gold. He returns to town only to discover that his partner has since died and left Tommy fatherless. He decides to leave Shep with Tommy to cheer him up. Meanwhile, Jonathan's new partner isn't interested in sharing the gold, and lures Jonathan to his death.
In 1858 France, Emperor Louis Napoleon sends Captain Renault of the Royal Dragoons, Minister La Roche and Major Nicolet to Normandy in search of the members of a group of rebels. A Masked Cavalier, the niece, Lady Christianne, of the Marquis De Montableau, announces at a secret meeting of the Normandy underground leaders that the fabled treasure of Monte Cristo was willed to her and she will use it to finance their cause. Her uncle, the only one who can decipher the symbols on the sword of Monte Cristo, the key to the treasure, derides her stand against the Emperor. La Roche takes possession of the sword and has the Marquis put into the dungeon. Christianne, as the Masked Cavalier, regains the sword from La Roche, but Captain Renault apprehends her and returns to sword to La Roche.
Zara Montalve, half Spanish and half America, returns to her native California in time to see her parents murdered for their hacienda and gold by Sheriff Jim Harding and his gang. Posing as Lola Belmont, an American visiting from Detroit, teams up with Joaquin Murietta, posing as Carlos Del Rio, to form a Robin-Hood type band that takes vengeance on the gang and restores stolen gold to its rightful owners, aided by militia leader Dan Hinsdale.
France, 1640. Cyrano, the charismatic swordsman-poet with the absurd nose, hopelessly loves the beauteous Roxane; she, in turn, confesses to Cyrano her love for the handsome but tongue-tied Christian. The chivalrous Cyrano sets up with Christian an innocent deception, with tragic results.
A Confederate troop, led by Captain Lafe Barstow, is prowling the far ranges of California and Nevada in a last desperate attempt to build up an army in the West for the faltering Confederacy. Because the patrol saves a stagecoach, with Johanna Carterr as one of the passengers, from an Indian attack, and is marooned on a rocky mountain, it fails in its mission but the honor of the Old South is upheld.
Tigri and her stone age friends, all of which are women, hate all men. However, she and her Amazon tribe see men as a "necessary evil" and capture them for potential husbands. Engor, who is smarter than the rest of the men, is able to escape them. He discovers fire and battle enormous beasts.
A young man goes to work in a logging camp to fulfill a boyhood ambition and a jealous loggers rigs things to make him appear to be an incompetent bungler. But he proves himself successfully conveying an injured workman to the hospital in a careening truck, whose brakes have been tampered with, down a mountainside.
Little David Gordon lives in the jungle with his parents Ruth and Fred, along with their servant Nona. David likes living there while his father captures wild animals; he's made friends with Bomba the jungle boy, who has shown him a great deal about life in the jungle. One day two adventurers come looking for ancient treasure in the shadow of a live volcano.
The story of a fear-inspiring revolutionary general who develops a passion for the daughter of a wealthy villager. It's hate at first sight so far as the girl is concerned, but this will soon change.
"Kon-Tiki" was the name of a wooden raft used by six Scandinavian scientists, led by Thor Heyerdahl, to make a 101-day journey from South America to the Polynesian Islands. The purpose of the expedition was to prove Heyerdal's theory that the Polynesian Islands were populated from the east- specifically Peru- rather than from the west (Asia) as had been the theory for hundreds of years. Heyerdahl made a study of the winds and tides in the Pacific, and by simulating conditions as closely as possible to those he theorized the Peruvians encountered, set out on the voyage.
Christopher Columbus overcomes intrigue at the Spanish court and convinces Queen Isabella that his plan to reach the East by sailing west is practical.
Prof. Millard pretends to be dead and helps Jeff King ferret out Vulcan, the evil traitor at the science academy. Donning his Rocket Man costume King goes from one hair raising rescue to the next in order to keep the newly invented Decimator out of the clutches of Vulcan and his minions.
When bookseller Buzz cons Diana into thinking that his friend Stanley knows all there is to know about Africa, they are abducted and ordered to lead Diana and her henchmen to an African tribe in search of a fortune in jewels.