Hero Land is a world where you can meet the heroes and heroines you have been waiting for, created by the inventor girl "Ururu". Shimajiro and his friends were overexcited, but a bad robot appeared there and Hero Land was in big danger. Can Shimajiro and his friends work together to help?
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.