Akira has returned alive after defeating Beta, but soon Tokyo is targeted by a large-scale hacking attack. He dives into the network along with Ygg's clones to figure out the cause, and fights the enemies within, but in the meantime the hacking spreads to the entire world.

It takes over military bases and fires a volley of ICBMs, seeking to destroy the entire world. In order to save humanity, Akira makes a decision born of love.
I can tell you what it is Natsume
Akira is fighting.
يمكنني أن أخبرك بماهية
ما يقاتله ناتسومي أكيرا
Lass mich dich darüber aufklären,
gegen was Natsume Akira kämpft …
Te diré a qué se enfrenta Akira Natsume.
Te diré a qué se enfrenta Akira Natsume.
Je vais donc t’apprendre
contre quoi Akira Natsume se bat.
Vuoi che ti riveli
Eu vou dizer contra o que
Natsume Akira está lutando.
Я расскажу, с кем сражается
Акира Нацумэ.