After dealing with a gorilla named Terkoz, Tarzan meets Jane Porter and her father Professor Archimedes Q. Porter after falling victim to a mutiny during an archaeological expedition to the lost city of Cowloon.
Tarzan, N'kima, Tantor, Buto, and Gorgos end up sucked underground by a forcefield and end up in the underground city of Terrapolis which is inhabited by the mole people.
Tarzan learns from Phobeg's son Tiborgh that Queen Nemone had dove deep into the forbidden mystic arts and became a sorceress where one of her magic tricks has turned Phobeg into a lion.
Fana the Huntress has come to the Jungle with her white tiger Pasha to capture Jad-bal-ja, the Golden Lion, an orphan that Tarzan raised from a cub, but she is soon captured by the Bolgani.
