The story begins with Nobita and Shizuka sitting on the pipes in the yard they hang out at while Suneo showed off his robot. Nobita grew jealous and asked Doraemon to build him a giant robot.

Nobita and Doraemon travel into the future to see whether or not Nobita will marry Shizuka. Once they arrive, they find out that instead of travelling to the day of the wedding, they traveled to ...