This Japanese animated movie is adapted from the original Doraemon animated series. It tells the story of Doraemon, Nobita, Shizuka, Gian and Suneo travelling to space to fight with monsters. Each one of them is granted with a super power - Doraemon with super punch, Nobita with a cat's cradle move, Shizuka with the power to control water, Gian with super strength and Suneo with a powerful drill on his arm.

One day, Suneo, Jaian and Shizuka decided to make a movie about space-based hero film Guardians of the Galaxy is magical current blockbuster. The role of beast should be played by Nobita to do the film but he cooperated with Suneo group. While they were shooting the film Jian beated Nobita as he was an space alien and Nobita started crying and ran away to the house to ask help from Doraemon. After that, they two reteurned back where the Suneo's group were shooting the film and Doraemon took a gadget from his pocket which is a film director called Burger director. And they all become space heroes and in the film they started fighting with space monsters. Meanwhile,an alien from outside the planet came to ask help from the space heroes and they agreed to follow him. On the spacecraft, alien that is Aron, sheriff of Pokkoru planet which is full of rats, were lucky to escape the pursuit of security personnel of Recreation Land Space (space pirates Impersonation). Until arriving in the planet they thought that the party was only scene in the movie. When the arrived in the planet,they were attacked two or three times, then they get know that it is not a a scene in the film, this group is real. Then they followed Aron to the shelter of his secrets. And after two days, they panned and come out of the secret place for the battle.

The following morning, Aron and reconnaissance group entered the Pokkoru planet. After that Aron tried to warn councilors and the public to remain alert, but no one believed it. Nobita discovered pirates la of the universe, so he pushed him away and went down and dropped the star hero down in the wells . Fortunately, Aron found that Nobita tied by ropes and accidentally left active disguised know of Space Land is sucking the energy plan of the planet to shoot down Arumasu star (stars carry light breeds Sun). However, Aron and Nobita was discovered by MEBA and Jaian and Suneo was arrested earlier by Ogon. Shizuka, Doraemon and Nobita had seen the star of drifting toward him, saw something not healthy for people to rescue them down and their friends. Although the rescue was successful but Shizuka was caught by Haido in order to surrender the Aron's group. After that, Aron reqested Burger to show virtual images to fool Haido. However, when both of the shelter, the group began to split and Aron disappointed to learn the truth about the hero he hoped but the group decided to help save the planet Pokkoru Aron.

Then, Aron and Burger director moves towards the straight to the tower group Space (actually catapulted up radioactive energy Arumasu star) while residents Pokkoru were unaware of their dangers. The Doraemon and his friends didn't know about the pirates but they were MEBA and Ogon and they two planned to block and hit them, while Haido group is in the basement at the foot of the tower, but Doraemon and his friends quickly defeated MEBA and Ogon. But the groups were pulled into the basement and accidentally Haido ran away to destroy Nobita, and he is accidentally caught inside the ship of pirates because of MEBA waist fall against him but Ikarosu oligarchy knows that his plot on. Though defeated when alone but because he is too weak (due to no energy from graphite - a major component of the star Arumasu) the Nobita promote the full power of his to the Ikarosu but to destroy him not dead. After learning the secret out, they returned to the ship heading to disable launchers but the were too late because IKarosu have triggered it. Luckily, they stopped the group of star explosions and killed Arumasu after Burger user must Ikarosu and in the rewinding time Pokkoru planet has not sucked the energy to restore life star of this planet. Escape Pokkoru planet from destruction and residents gradually awakened before Aron's warning.

The story ends with the message "Let's protect this smile ...".