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

A paleontologist and her husband discover a mother and baby brontosaurus in Africa, and try to protect them from hunters who want to capture them.

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.

An American soldier who escapes the execution of his comrades by Japanese soldiers in Borneo during WWII becomes the leader of a personal empire among the headhunters in this war story told in the style of Joseph Conrad and Rudyard Kipling. The American is reluctant to rejoin the fight against the Japanese on the urging of a British commando team but conducts a war of vengeance when the Japanese attack his adopted people.

An expedition enters an area of the Congo jungle to investigate reports of a gorilla-worshipping tribe.

Hamburg ship captain Markus Jolly is hired to transport a vaccine to a Latin American port, but when the precious cargo is stolen by mobsters, he is falsely accused of engineering the theft.

With the first anniversary of her wedding to Tarzan beckoning, Jane ponders how to make it the perfect English celebration.

Dr. Lily Houghton enlists the aid of wisecracking skipper Frank Wolff to take her down the Amazon in his dilapidated boat. Together, they search for an ancient tree that holds the power to heal – a discovery that will change the future of medicine.

A New Yorker journeys to the jungle in the Darien Gap of Panama to reconnect with an indigenous tribe he met and photographed 20 years ago. Their reunion highlights the profound power of photos and the human connection that transcends cultural barriers.

Tarzan and Jane are traveling to Paris to help his old friend Countess de Coude, who is being threatened by her brother, Nikolas Rokoff. Rokoff has Tarzan tossed overboard. He survives, comes ashore in North Africa, and goes to Paris to search for Jane. In Paris, Tarzan reunites with his old friend Paul D'Arnot, who informs him that Jane was taken to Africa. Tarzan returns just in time to save Jane from a lion attack, and soon defeats Rokoff and his henchmen.

Mary and Bobby Trevor are castaways befriended by Tarzan. When Lord arrives, looking for the family heir, Black John tries to fill that role and marry Mary in England. Tarzan shows up and marries her instead.

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.