On an ordinary day, Nobita felt extremely upset. First, he was defeated in arguing with the husband about whether the dinosaur still existed, and then the zero test paper was searched by his mother. In order to hide the accumulated test papers, Nobita and Doraemon used props to dig a huge hole in the back mountain. Nobita was overjoyed, so he and his friends built an underground ideal kingdom. At the same time, the husband was so upset that he saw dinosaurs countless times and even saw running dinosaurs in holes in the ground. Soon after, the husband mysteriously disappeared. Knowing that he may be trapped underground, Nobita, Doraemon, Fat Tiger and Jingxiang decided to rescue their friends. To the surprise of my friends, the cave is connected to a strange world, where there are not only all kinds of dinosaurs, but also a mysterious kingdom. The friends were warmly received by the underground kingdom and finally found the husband. But by chance, they learned that a mysterious plan was under way in the underground kingdom.
6.6
