The story begins when a mysterious thief known as steals the gold bell from Doraemon’s neck while he is sleeping. Without the bell, Doraemon begins to act more like a stray cat, losing his composure. To find the bell, Doraemon gives Nobita a "Sherlock Holmes" gadget set, which leads them to the Museum of Future Gadgets in the 22nd century.
In this exciting adventure, Nobita discovers a mysterious museum that contains incredible gadgets from the future. However, the museum is in trouble, and it's up to Nobita, Doraemon, and their friends to save it. doraemon movie nobitas secret gadget museum