Doraemon went missing for 3 days. But it turns out later that he went to the 22nd century to buy a mystery galactic express train ticket whose destination is a secret until the passengers arrive there and see for themselves. Meanwhile, Suneo also got tickets for Express train tickets but he only has 3. When Nobita founds out about this, he decides to invite his friends to the mystery galactic express train instead of just going to the normal Express Train which Suneo invited them. When Suneo finds out about this, he was jealous and decided to force his friends to come with him on the Express Train, but in the end, all his friends decides to go the mysterious galactic express train. A few days later, Suneo decides to come as well.
WATCH AND DOWNLOAD