Nobita brought home the fossils found in the dinosaur exhibition and successfully hatched two new dinosaurs with wings that had never been found with the help of Doraemon's time burden. Nobita and his friends decided to bring the little dinosaurs back to their time, and a thrilling Cretaceous adventure was about to take place. This film is the 50th anniversary of the Doraemon cartoon series, and it is also the 40th work of the Doraemon series. A new story, a new Nobita, a new adventure, a completely new beginning!