Doraemon and friends go on an adventure to meet new buddies, connect to people with music, and save the world from a crisis.

When Nobita finds dinosaur eggs, he revives them, unleashing Kyu and Myu. As this new species roams the city, Nobita must send them back to the Cretaceous era before extinction.

Upon hearing about the story of Treasure Island, Nobita dreams of discovering and exploring his own treasure island, despite the fact all of the Earth has been mapped already.