During World War II, an American bomber pilot is rescued after drifting at sea aboard a raft. After being administered truth serum, he tells the doctor a story of how he and the three survivors of his plane crash washed up on an island that was inhabited by a tribe of beautiful primitive cave-women, dinosaurs and a group of savage cavemen who are bent on abducting the women for breeding purposes.
In turn-of-the-century Australia, two criminals ingratiate themselves with a rancher in order to swindle him. However, the two partners become rivals for the affection of the rancher's beautiful daughter.
When their hospital ship sinks in the South Pacific during WWII, military nurse Elizabeth Smythe and Marine Michael Dugan find themselves stranded — and soon enough, falling in love — on an idyllic tropical island. But when British pilot William Peck crash-lands on their cozy little atoll, Dugan suddenly discovers he has a rival in love.
Early in the War of 1812, Captain James Marshall is commissioned to run the British blockade and fetch an unofficial war loan from France. As first mate, Marshall recruits Ben Waldridge, a cashiered former British Navy captain. Waldridge brings his former gun crew...who begin plotting mutiny as soon as they learn there'll be gold aboard. The gold duly arrives, and with it Waldridge's former sweetheart Leslie, who's fond of a bit of gold herself. Which side is Waldridge really on?
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.
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.
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.
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.
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.
Traveling north into Arizona, Cisco finds that someone committing robberies has been impersonating him and he is a wanted man. After retrieving some of the stolen loot, he is caught with it in his posession and put in the guard house. A friend whose life he recently saved beaks him out and Cisco heads out to find the impersonator and clear himself.
Gridley is mining silver from an old Mexican mine and bringing it into the USA thru a passage into his worthless mine. Border guard Rogers suspects Gridley and finally finds the secret entrance to the Mexican mine. He sends Lee Madison for help only to have her captured by Gridley. Trigger brings help that takes care of Gridley's men and now Roy has to rescue Madison.