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.