When everyone thought that Orochimon had been defeated, a mysterious countdown suddenly began, and the same incident occurred in real Tokyo. The electronic devices of people were become abnormal. At this time, Orochimon evolved from a Ultimate form and become the Mega from . In order to prevent it from destroying Tokyo, Taichi and Yamato joined forces with Agumon and Gabumon to stop it. Agumon and Gabumon later became Omegamon, and completely eliminated it.