Nobita’s father spots a bizarre midnight television advertisement for a fantastical resort and, still half‑asleep, books a stay without realizing he is actually speaking to the ad. The following day he tells the family about the holiday plans, only to discover that the resort cannot be found anywhere on Earth. Suddenly a suitcase appears in Nobita’s room; when he opens it, he finds a portal that leads to a stunning resort run by tin robots. The trip is free, but it soon becomes apparent that the mysterious host has a hidden agenda.