On a normal afternoon, Doraemon's bell was stolen by Kaito Deluxe, a thief from the 22nd Century. Determined to get it back, Nobita and co. decides to pursue him and take back the bell that is hidden inside the 22nd Century's Secret Gadget Museum.
Doraemon: Nobita no Himitsu Dougu Hakubutsukan, 映画 ドラえもん のび太のひみつ道具博物館[ミュージアム] Doraemon Movie 33: Nobita no Himitsu Dougu Museum
