Tarzan is thrown overboard by Russian spies off the coast of Africa. He returns to the jungle and becomes chief of the Waziri tribe and discovers the city of Opar where he and his warriors plunder much gold. When he learns that Jane Porter is also stranded in the jungle he rescues her and they are married.; An old witch doctor tries to poison Dan-El and leads his warriors to attack the city.; Information on the Sudd, the largest swamp in the world.; Facts about pirates.