Nobita is once again depicted as a smart and responsible boy who is fascinated by space and the mysteries of the universe.
One day, while working on a project about space, Nobita discovers a strange alien artifact that has the power to transport him and his friends to different planets across the galaxy. Excited by the prospect of exploring new worlds and meeting alien life forms, Nobita convinces his friends to join him on a journey through space.
Using his intelligence and knowledge of science, Nobita is able to navigate their ship through treacherous asteroid fields and dangerous space storms. Along the way, they encounter strange creatures and fascinating new civilizations, and Nobita is able to communicate with them using his knowledge of different languages and dialects.
As they explore the galaxy, Nobita and his friends stumble upon a planet that has been enslaved by an evil alien race. With his smarts and quick thinking, Nobita devises a plan to rescue the planet's inhabitants and defeat the alien oppressors.
Using Doraemon's gadgets and his own intelligence, Nobita and his friends are able to liberate the planet and restore freedom to its people. Their heroism earns them the gratitude and respect of the entire planet, and Nobita is hailed as a hero for his bravery and cleverness.
Returning to Earth, Nobita is able to use what he has learned on his space adventure to inspire and educate his classmates about the wonders of the universe. He becomes known as the "Spaceblazer" and continues to explore the mysteries of space with Doraemon by his side, using his smarts and creativity to overcome any obstacle that comes his way.