Jane must rescue Tarzan when he is almost killed when an old mineshaft collapses.
Tarzan helps a young black doctor face a tribal test that will enable him to become chief of his people.
Roger decedes to return home to be with an old flame, but Tarzan and the others use an environmental challenge to change his mind.
Tarzan must stop a deceptive chemist from destroying the jungle with a new poison gas.
A sheik comes to the jungle wanting oil, but decides he also wants Jane. Tarzan must rescue her in the midst of a forest fire.
Roger has a brush with death that leads Tarzan on a collision course with a man dumping chemcal pollutants and threatening to destroy the ocean.
Tarzan encounters two greedy, evil karate warriors who are smuggling ground up rhinoceros horns out of the country.
When Roger tries to prove himself by single-handedly recovering a fossil, he lands in a field of exploding fire geysers. Tarzan must save him.
Tarzan stands up to a mean, greedy prospector who returns to the jungle to mine uranium, unconcerned about polluting the river.
Jane is kidnapped by a mutant pre-historic creature that is trapped in a lagoon.
When big game hunters capture Bolgani, Tarzan puts his own life in danger to rescue him. Trapped on a train with numerous enemies, Tarzan must face both life and death before any chance at survival.
A strange amulet discovered in the darkest jungle of Africa by Count de Coude sends Tarzan back to his homeland to stop his arch enemy Rokoff from unleashing its terrible powers.
Tarzan is in his jungle sanctuary, when he sees a man running for his life. An ominous shadow passes over Tarzan. He sees the terror stricken man, then the next minute, he disappears into an ominous shadow.
When the citizens of Dunali begin killing the Great Apes they believe responsible for the murders of several women, Tarzan re-enters civilization to search for the real killer himself.
Tarzan, upon returning to the N'gono tribe to visit his friends, is beset with telepathic visions from another world. They are images of N'gono women that have been strangely disappearing.
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