A warrior of the Crusades helps in the Christians' fight against Islamic invaders.

Maciste is captured and forced to work as a slave in an African mine.

A gang of Mexican bandits make trouble for the owner of a gold mine, so he hires on a gunfighter.

Viking chief Thorvald dies from a mortal combat wound. He realizes his son Erloff is not a worthy successor, but his will divides his property equally between him and Erik, the valiant son of his sister, who also gets his weapons and the mission to lead a sea-faring expedition to find new land for a settlement, crucial as their Scandinavian home village won't be able to resist the might of the Danish kingdom.

The god Wotan gives the young Prince Sigmund of Valhalla and his sister Brunhilde, the leader of the Valkyries, the task of defending the Petrified Forest. This is threatened by the Vikings (led by the aggressive Hunding), who plans an invasion of the forest in search of the secret treasure of the Nibelung, the possession of which gives one unlimited power. After crossing the border and invading Valhalla, Hunding finds an ally in the daughter of one of Sigmund's loyal followers, Erika, who is embittered by unrequited love. She helps the Vikings raid the camp of the Valhalla residents and kill many warriors. Sigmund swears vengeance and pursues them with the remaining men. However, thanks to other traitors in Sigmund's ranks, Hunding succeeds in capturing him and his fiancée Siglinde, Erika's sister. At the end, Sigmund escapes and, with the help of the Valkiries, succeeds in stopping the invaders and defeating Hunding in a duel.

A Scientist that developed a formula to increase the world's food supply, is captured by enemies that don't want this to happen. George Collins, Agent X 1-7 is assigned to rescue him from a castle where he is held hostage.

Ulysses offends the gods so they send Hercules to capture him and bring him to them.

A girl from a country village goes to town and falls in love with a songwriter struggling for success. Soon however their life-paths go different ways and they split. Only for a short time naturally : a song he writes will help them to reunite.

In the tenth year of the Trojan War, tensions between Achilles and Agamemnon divide the Greek camp while giving hope to the Trojans.