Hiro, Ruli, and Kiyoshiro were tasked with creating a country that would bring Digimon and humans together. It's been 4 years since Quantamon's demand. Hiro and Ruli have just graduated high school, and they are going to open Digitia in just a few weeks. But, not all Digimon or humans are happy with this arrangement. Suddenly, things seem to be happening to make Digitia fail --- after 4 years of peace, Hiro and the gang will have to, once again, fight for what they believe in.