On the night before Doraemon’s birthday, Nobita plans a surprise birthday trip with Dorami, Shizuka, Gian, and Suneo while his parents are away. Using a special gadget, Nobita’s house transforms into the “Nobita Express,” a fully functioning train driven by Nobita himself. The group enjoys the journey until mysterious train hunters from the future steal the train with Doraemon, Shizuka, and Gian still inside. Nobita and a sheep conductor then set out to rescue their friends and recover the stolen Nobita Express.