The movie begins with Nobita stumbling upon a hidden museum that showcases an amazing collection of futuristic gadgets. The museum is a treasure trove of innovative technology, but it's in disarray. The curator, a brilliant scientist, has gone missing, and the museum is threatened with closure.
For long-time fans, the movie is a nostalgic victory lap. For new viewers, it is the perfect crash course in "What Doraemon is." doraemon movie nobitas secret gadget museum