Seeking a cure for N'geeso's paralysis, Kaänga and N'geeso go to a far off valley, where they find a tribe of whites living in a style from ancient history. Kaänga inadvertently interrupts a courtship ritual and angers a giant named Gortha who makes it his purpose in life to kill Kaänga and destroy the city because of the slight given him by the city's princess. He fails when Kaänga and the now-cured N'geeso drive his war elephants to stampede, trampling Gortha.; Explorers are seeking Lost Valley. Thief Dutch Madden is cutting off the arms of natives in an effort to get them to lead him to the valley ahead of the explorers. Camilla intervenes.; Terry and Keeto ride out to help a young woman find her long overdue photographer father. They learn that the father and his assistant had discovered gold and the assistant killed the father for it. In the ensuing battle, Terry is captured, but Keeto makes everyone believe that the local volcano has become active again, using hand grenades, causing them to flee.; Simba searches for his lost mate and finds her in an ancient temple. He digs their way to freedom. They followed on their path by a pair of archaeologists, fleeing from their safari leader who is determined that he will share their discoveries with them. The leader falls to his death and Simba and Mrs. Simba make their way home.; Wambi is captured by the M'Batos and tortured. A young man of the tribe frees him. Later, Wambi learns that the Salusis are about to attack the M'Batos. Because of the favor owed to the young man, Wambi and the jungle animals defeat the Salusi and prevent their raid.; The Masai priestess convinced the people that their chief is dead; unknown to them, she has merely placed him in a coma and, on reviving him from said coma, she uses drugs to place him under her control. She has the "ghost" of the chief demand that the tribe give her tribute. Tabu arrives and exposes the fraud.