In this movie, that takes place three months after MaloMyotismon's defeat, the DigiDestined go up against Diaboromon again. Tai and Matt head back to the Internet to deal with him with Omnimon, while the younger Chosen Children go to deal with the rampage of a swarm of Kuramon (Diaboromon's Fresh form). With the help of Angemon and Angewomon (with T.K. and Kari), Omnimon was able to destroy Diaboromon again, but it turned out to be a trap, as his destruction allowed many more Kuramon to go to the Real World. Things go out of control when the Kuramon in the Real World merge to create a Mega level called Armageddemon, an alternate Mega in Diaboromon's evolutionary line. It is so powerful that neither Omnimon nor Imperialdramon were able to defeat it on their own.
Reiko Kiuchi
Junko Noda
Rio Natsuki
Koichi Tochika
Megumi Urawa
Taisuke Yamamoto
Miwa Matsumoto
Kae Araki
Yuka Tokumitsu
Romi Park
Naozumi Takahashi
Umi Tenjin
Takahiro Sakurai
Youto Kazama
Ai Maeda
Yuko Mizutani
Masami Kikuchi
Chika Sakamoto
Toshiko Fujita