The Saber-toothed people send out their "fire god" to capture more cavemen to work in their mines. Dino Boy is captured when he tries to save a baby. Ugh hops on the machine and hides on top of it as it rolls into the city.
Dino Boy and the baby are to be sacrificed since they are too small to work in the mines. They bring out a saber tooth lion and Ugh leaps into action. He knocks out the two warriors on the "fire god" and start to move it himself. The other warriors think that it's an omen and run away. The leader shouts at them to come back and he is destroyed when the "fire god" rolls on top of him and bursts into flames.