Description
The Ulam are a tribe of cavemen who possess fire in the form of a carefully guarded small flame which they use to start larger fires. Driven out of their home after a bloody battle with the ape-like Wagabu, the Ulam are horrified when their fire is accidentally extinguished while taking refuge in a marsh. Because the tribe does not know how to create fire themselves, the tribal elder decides to send three men, Naoh, Amoukar, and Gaw, on a quest to find fire.
The trio encounter several dangers on their trek, including an encounter with the Kzamm, a tribe of more primitive-looking cannibals. The Kzamm have fire, and Naoh, Amoukar and Gaw determine to steal it. Gaw and Amoukar lure most of the Kzamm away from their encampment. Naoh kills the remaining warriors, but not before being bitten on the genitals by one, which causes him agony. The three Ulam take the Kzamm fire and prepare to head home.
A young woman named Ika, who had been a captive of the Kzamm, follows them. She makes a primitive poultice to help Naoh recover from his injury. Later, Amoukar attempts to rape Ika. She hides near Naoh, who then rapes her himself in front of the other two males.
Ika soon recognizes that she is near her home and tries to persuade the Ulam to go with her. When they refuse, they go their separate ways. Naoh turns around, followed by the reluctant Gaw and Amoukar and the band is reunited. After Naoh leaves the others to scout a village, he is trapped in quicksand, nearly sinking to his death, but is discovered and captured by the Ivaka—Ika's tribe. At first, Naoh is subjected to several forms of humiliation by the Ivaka. He is forced to mate with the high-status women of the tribe, who are large and big-breasted. The petite Ika is excluded by her tribe, and when she attempts to lie near him later that night, she is chased away. The Ivaka show Naoh their advanced knowledge of fire-making with a hand drill.
Gaw and Amoukar find Naoh among the Ivaka. They try to rescue him but Naoh seems unwilling to leave. At night, Ika helps them knock Naoh unconscious and escape the camp. The next day, Naoh washes off the Ivaka body paint. He tries to mount Ika again, but she teaches him the more intimate missionary position. Not long before they reach the marsh where they started the journey, the three are beset by peer rivals from within the Ulam, who wish to steal the fire and bring it back themselves, but Naoh and his group defeat them using the Ivakan atlatls, which are superior to Ulam weapons.
Finally rejoining the Ulam, the group present the fire to the delight of all. But during the ensuing celebration, the fire is again accidentally extinguished. Naoh tries to create a new fire as he'd seen in the Ivaka camp, but after several failed attempts, Ika takes over. Once the spark is lit, the tribe is overjoyed.
Months later, Naoh and Ika prepare to have a child.
