Ernie and Bert are cavemen. Since they have no grocery stores or restaurants, they must find food on their own. Ernie finds a nest with a giant egg, which he and Bert remove to take back to their cave. When Bert starts to cook the egg, it hatches and a baby dinosaur emerges, calling the attention of the mother dinosaur. After getting chased, Bert and Ernie see how sad the mother is without her baby, so they give him back and are rewarded with bananas to eat.
