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.
And it looks like my gray cells 
have truly reached their limit.
يبدو أنّ دماغي وصل حدّه فعليّاً أيضاً
Und wie’s aussieht, ist mein Gehirn
langsam wortwörtlich am Kochen.
Además, mi cerebro está
al límite de verdad.
Además, mi cerebro está
al límite de verdad.
Et on dirait que mon cerveau
a vraiment atteint ses limites.
Inoltre,
E parece que o meu cérebro
está meio no limite.
А ещё, похоже,
моё серое вещество на пределе.