Ann is kidnapped by the mad scientist, Dr. Wratt, who controls a group of man-apes through hypnotism. Kaänga rescues her and Dr. Wratt is killed by his man-apes during Kaänga and Ann's escape.; Stanley, an ivory hunter, is captured by Camilla's guards. She asks him to join her and command her forces; when he refuses, she threatens to kill him with flexodium rays. Stanley uses the rays to destroy Camilla's city. Camilla refuses to leave the ruins.; The criminal Sanders kills an explorer for his map to the elephants' graveyard. Tabu leads the explorer's son to the graveyard where Tabu extracts revenge against the criminal.; A group of French Foreign Legionnaires mutinies during an attack by Arabs and Terry must overcome both groups of adversaries.; A slaver persuades a village to attack the local British garrison, believing that if the garrison can be destroyed, the slave trade will become easier. Wambi hurries to the next, larger garrison and brings back relief forces that drive away the natives.; Fantomah stops two ivory hunters from raiding the elephants' graveyard by using their own greed against them.; The Red Panther rescues a missionary and his daughter from their captor, the witch doctor Tortug.; Dawambo unites all the savage tribes of central Africa in revolt against the European powers. John Abbot, a movie producer, takes his star, Joan Sarret, to Africa to shoot footage of the rebellion. Hunter Roy Lance acts as their guide. Their safari is captured by Dawambo and a combination of Lance's fists and Abbot's movie projector win them their freedom.; Simba rescues a naturalist and his son from a water buffalo attack.