Keroppi and his friends discover dinosaur bones while playing hide‑and‑seek. With the help of the village elder, they excavate more fossils and reassemble the bones, realizing they belong to a baby dinosaur. Nearby, a museum displays the mother dinosaur’s skeleton. As night falls, the baby skeleton awakens, searching for its mother. The gang assists in reuniting the pair, and the baby’s cries animate the mother’s skeleton. Together, their spirits ascend, and the two skeletons are lovingly exhibited side by side in the museum.