The adventure continues across two continents as Tarzan travels back to England, where he becomes embroiled in royal intrigue and espionage. Later, returning to his African jungle home, he is proclaimed leader of the Waziri tribe and told about a fabulous lost city full of treasure ruled by a beautiful priestess. The priestess falls in love with Tarzan, but he cares only for his fiancee, the American beauty Jane Porter and when she's kidnapped by a dangerous tribe of apelike men, Tarzan must use all his powers as king of the jungle to rescue her.