Doraemon Movie 46: Nobita no Jouki Jikansha

After accidentally unearthing a rusty antique railway ticket inside his grandfather's storage chest, Nobita Nobi triggers the arrival of a fantastical steam locomotive that rides temporal rails across centuries. Joined by Doraemon, Shizuka, Gian, and Suneo, the neighborhood gang embarks on an extraordinary trans-temporal expedition. Their scenic journey across steam-powered future cities and primeval prehistoric valleys takes a dangerous turn when rogue temporal pirates attempt to hijack the engine's core mechanism. To prevent the collapse of history's timeline, Doraemon and Nobita must rely on futuristic secret gadgets, courage, and teamwork to guide the locomotive safely home.