Tarzan rescues Valthor from some captors and then helps him return to his homeland. On the way they get separated and Tarzan finds himself in the "city of gold", Cathne. Forced to fight in the arena, Tarzan emerges victorious, and Queen Nemone tries to win him to her side. After again rescuing Valthor, now himself in the arena, Tarzan plays along with Nemone, wishing to see something of Cathne.
Leopard Girl [Meru; Dr. Sylvia Morgan]; Munya; Toto; Chui; Mr. Mongo; Inspector Cordan
Synopsis
Leopard Girl travels to the city to try to sell some uncut diamonds to buy some more equipment. A jeweler tries to cheat her and frame her for robbery, but the police inspector knows Meru as Dr. Morgan.