The itinerary of a Junior Stargazer/Space Cadet convention (organized to bring together students and parents from across the country for fellowship and scholarly competition) is spectacularly disrupted by world-changing events.
When all the canine pets of Megasaki City are exiled to a vast Trash Island, 12-year-old Atari Kobayashi embarks on an epic journey in search of his bodyguard-dog, Spots.