Taichi and Koshiro's plans to go to summer camp are interrupted when a cyberattack causes chaos in Tokyo, introducing them to strange creatures who may be able to help.

While in digital space, Taichi meets a boy riding on a Digimon's back; the kids and their new Digimon friends race to stop a missile launch.

Taichi and Yamato battle an enormous white Digimon to prevent the missile strike from wiping out Tokyo, while a new threat closes in.

Accompanied by Sora instead of Koshiro, Taichi arrives at the Digital World; Sora meets Piyomon, who evolves into Birdramon.

Taichi and the others reach a place that looks like a temple in front of a mountain; they come to face the secret of the Digital World and the reason why they have been summoned there.

Taichi's party comes across an orchard and meets a mysterious girl, Mimi; Taichi and his friends find out that a kingdom is targeted by some ferocious Digimon.