A safari finds its way into the Kingdom of Ra, descended from ancient Egypt and ruled by Queen Sheba. Sheba, following the suggestions of her advisor, Toru, imprisons the safari. Toru also advises the sacrifice of Sheba's sister, Landra. Landra flees into the jungle and meets Ann. Sheba's forces take Landra and Ann back to the kingdom; Kaänga follows. Using the mammoths trained for use by Sheba's forces, Kaänga destroys the kingdom's walls and kills Toru. He and Ann depart and Sheba promises to be a better queen.; Murdock sets up a native as "Kaboola," a friend to all tribes, stealing from whites and giving the goods to the villages. Camilla learns that Murdock is plotting to have Kaboola lead the tribes into war against the whites that Murdock wants driven from Africa. Kaboola learns that he is being used and kills Murdock. Camilla captures Murdock's men and takes them to the district commissioner.; Someone is helping convicts escape as they are sent downriver from Fort Diablo. Terry follows the boat from the shore. The boat is attacked by Black Karen who takes the prisoners to her camp where they are sprayed with beldine dye, making them appear black. They are then put to work cutting down petrified trees. Terry attempts to help them and is captured. Shortly, Keeto arrives with the lancers, having been tracking Terry. Terry convinces the convicts to revolt against Karen and with lancers, defeat her men.; A marauding band of mandrills attacks the animals of the jungle. Wambi leads them on a game of chase that ends with the mandrills falling into the crocodile pool.