The Mountains of the Moon

Tarzan, having acclimated to life in London, is called back to his former home in the jungle to investigate the activities at a mining encampment.

Harry Holt returns to Africa with his friend Martin Arlington to head up a large ivory expedition.

A million years ago in Africa: the last of the ape-humans is on flight from the humans, who killed the rest of his clan. Alone, seeking others of his kind, he traverses steps, deserts and mountains until he reaches the coast. But there are already humans, too.

A group of archaeologists asks Tarzan to help them find an ancient city in a hidden valley of women. He refuses, but Boy is tricked into doing the job. The queen of the women asks Tarzan to help them.

Hoping to save his sick mother, a boy named Gunner and his friend Jo venture into the remote Wild Horse forest to search for a mythical figure who possesses the secret to immortality. When they go missing, Gunner's father Amos must immerse himself in his son's world to find them.

A scientific expedition happens to discover that gold exists on Tarzan's escarpment. The villainous Medford and Vandermeer kidnap Jane and Boy to extort from Tarzan the location of the gold.

James Parker and Harry Holt are on an expedition in Africa in search of the elephant burial grounds that will provide enough ivory to make them rich. Parker's beautiful daughter Jane arrives unexpectedly to join them. Jane is terrified when Tarzan and his ape friends abduct her, but when she returns to her father's expedition she has second thoughts about leaving Tarzan.

White hunter Captain Fry tries to take Tarzan back to civilization, caged for public display. He arrives in the jungle with Jane's cousins, Eric and Rita, who want Jane's help in claiming a fortune left her.

Noreno, a half-Roman, is entrusted with the mission of crossing the snowy mountains of Armenia, swarming with Parthian patrols, to seek help for his slowly dying men.

On the Arabian Peninsula in the 1930s, two warring leaders come face to face. The victorious Nesib, Emir of Hobeika, lays down his peace terms to rival Amar, Sultan of Salmaah. The two men agree that neither can lay claim to the area of no man’s land between them called The Yellow Belt. In return, Nesib adopts Amar’s two boys Saleeh and Auda as a guarantee against invasion. Twelve years later, Saleeh and Auda have grown into young men. Saleeh, the warrior, itches to escape his gilded cage and return to his father’s land. Auda cares only for books and the pursuit of knowledge. One day, their adopted father Nesib is visited by an American from Texas. He tells the Emir that his land is blessed with oil and promises him riches beyond his wildest imagination. Nesib imagines a realm of infinite possibility, a kingdom with roads, schools and hospitals all paid for by the black gold beneath the barren sand. There is only one problem. The precious oil is located in the Yellow Belt.