Doraemon: Nobita’s Little Star Wars

The film opens with a fierce battle on a faraway planet. The president frantically is evacuated aboard a rocket as enemy forces close in, setting the stage for the larger conflict to come. This prologue establishes the high-stakes backdrop before the action shifts to Earth.

Back on Earth, Nobita is yelled at by Gian and Suneo and kicked out after destroying their space-set. He runs to Doraemon for help, and the two decide to make their own film with Shizuka. The incident pushes Nobita toward new adventures rather than quiet resentment.

Nobita and Doraemon discover a tiny smart humanoid alien named Papi in their room after a late-night discovery of what looks like a toy rocket. Papi explains that a dangerous enemy is searching for him and that his planet needs him. The trio agrees to keep him safe, and they shrink to Papi's size using Doraemon's Small Light to join him in his world.

A whale-shaped spaceship destroys Suneo’s new film set, and Gian and Suneo confront Nobita about the chaos. Papi reveals that the attacker is PCIA, the dictator Gilmore's covert agency sent to capture him. The emergency underscores the growing threat to Papi and his people.

Papi explains he is the president of Pirika, a planet overtaken by dictator Gilmore and controlled by PCIA. He clarifies that his safety hinges on avoiding capture until they can reach Pirika. Nobita, Doraemon, and Shizuka vow to protect him and find a way to his world.

The friends hide Papi in a secret base hidden inside Shizuka's home, aided by a gadget. The PCIA battleship infiltrates the base and kidnaps Shizuka while stealing the Small Light, preventing the children from returning to their normal sizes. Dorakoruru, the PCIA head, leaves a ransom message demanding Papi in exchange for Shizuka’s freedom.

Papi leaves to surrender in order to protect his friends, while Nobita rewires Suneo's model tanks for flight and a quick escape. Rokoroko, Papi's dog, tries to help but arrives too late. The kids decide to travel to Pirika using the same rocket by which Papi arrived on Earth.

Nobita and friends travel to Pirika, landing near a secret base on the planet's ring. Army chief Genbu explains Papi is being held in the PCIA head office, facing a death sentence. Doraemon, Nobita, and Gian press on with Rokoroko, while Shizuka and Suneo stay behind to defend the base from PCIA space forces.

The group is captured by PCIA soldiers after Gilmore’s cameras trace them. They head to the planet's surface in tanks, but Shizuka and Suneo are shot down; the tanks sink, and both begin returning to their normal sizes. The fate of the mission hangs on a turning point inside the PCIA grounds.

Back at PCIA headquarters, Nobita, Doraemon, Gian, Papi, and Rokoroko nearly face execution, but Dorakoruru receives news of giant Earthlings spotted nearby. With the Small Light's effects expired, they regain normal size and join the fight as humans. Gian destroys Dorakoruru's battleship, sending it crashing into the ocean.

A mass of citizens rallies to block Gilmore’s escape and forces his surrender. The resistance—joined by Pirika and Earth allies—overcomes PCIA’s grip and secures Papi’s safety. The dictator's power collapses as the people reclaim control of their fate.

Nobita and friends bid farewell to the people of Pirika before returning to Earth. They discuss visiting Pirika again next week, signaling a hopeful ongoing relationship between their worlds. Ending credits show clips of their later visits and adventures.