Doraemon and Nobita decide to build a perfect toy robot. However, their creation turns out to be a little more uncanny than an object of appreciation and wonder.

Nobita, after wondering if Heaven truly exists, asks for Doraemon to take him there. When his robot pal suggests that they make their own Heaven, Nobita enlists Shizuka, Gian, and Suneo to help, but a war breaks out between two islands in the clouds that could have terrible environmental consequences if Nobita and Doraemon don't bring peace in time!

Nobita and Doraemon were finding out the truth about a real dinosaur. Nobita saw something under the ocean when they come across a cave that leads to an underground world full of dino-people. Nobita and his friends are amazed by their new discovery but sadly their memories must be wiped and must return to earth.

Shizuka ends up in the fantasy world of the 'Arabian Nights' story. However, Doraemon, Nobita, Suneo, and Jyaian must find her from the imaginary Middle East and bring her back to the real life.