Nobita has been having a weird dream about a boy named Roppel and his strange companion Chami traveling in space. By a twist of fate, he met them in person where it turns out that they are real and that they were being pursued in space, causing their space vehicle to malfunction, connecting the space vehicle itself with Nobita's room. They journeyed to Roppel's planet and amidst their enjoyment, Nobita and Doraemon pledged to help Roppel's planet free from their oppressors. 

(Source: ANN)

Doraemon and friends run away from their home and travel back in time to the 70,000 years ago where nobody existed to build their ideal private paradise. After they fully relished the freedom in the era, Doraemon and friends bid farewell to their paradise and come back to the present day. However, a few days after they came back home, Doraemon and friends bump into a caveman called "Kukul" in the current era. They find out that the caveman Kukul was accidentally transported forward to the present, and that his tribe called Hikari tribe was attacked and abducted by Giga Zombie and Kurayami tribe after Doraemon and friends left the primitive age.

Doraemon and friends decide to go back to the primitive age to save Hikari tribe from the villain.

They dive into a grand adventure during their first and the furthest runaway.

(Source: Toho)

About 700 million years ago, the Earth was covered in ice, becoming a white planet – a snowball Earth. It is said that this continued for millions of years... This time, Doraemon and his friends set off to an icy, wintry, freezing journey to find a hotter, crazier, and more exciting adventure than ever before!

(Source: Toho)

Nobita, who visited the dinosaur exhibition with his friends, and in a fossil excavation experience vows to his friends that he will discover a dinosaur and dares to eat peanuts with his eyes if he does not fulfill the dare. As he left the excavation experience he trips over a rock, and suspects he has found a fossil egg. He goes home and convinces Doraemon to use "time wrapping cloth" on the fossil egg and twin dinosaurs emerged. Doraemon found that they are a new species of dinosaur not listed in the "Complete Encyclopedia of Space". Nobita named the twin dinosaurs Kyu and Myu, and under the advice of Dr. Dinosaur learned how to take care of them. The two fast-growing animals gradually showed a difference. While Myu has learned to fly, Kyu has not and was smaller in size than Myu. As Kyu and Myu grew bigger, Nobita's room was not enough so they used the "Breeding diorama set" to allow Kyu and Myu more freedom. The day where Nobita fulfills his dare came, and as his friends arrived they discovered that Nobita has indeed found a dinosaur. At this point Kyu and Myu made a lot of commotion leading to Nobita's mom to come upstairs. They tried to hide Kyu and Myu by using the "spatial movement crayon", however, the townspeople saw Kyu and Myu. They realized Kyu and Myu reached the limit of growth, and should return to their time. Nobita had trouble accepting this, but decided it might be the best option.