Doraemon is kidnapped by a criminal group targeting caretaker robots, just before his birthday, forcing Nobita, Shizuka, Gian, Suneo, Dorami, and Sewashi to launch a rescue mission. As they uncover a conspiracy involving robot trafficking and a rogue factory manager at Matsushiba Factory, they learn Doraemon risks being reset and losing his memories. Fighting through security drones, mechanical traps, and the crab-like captor, they reach the factory’s core just as Doraemon is about to be erased. In the end, the manager cancels the reset, Doraemon is saved with his memories intact, and he reunites emotionally with Nobita before they return home together.