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.
The final battle to decide 
the world's fate was underway,
كانت المعركة الأخيرة لتحديد مصير العالم على الأرجح
Dies war aller Wahrscheinlichkeit
nach die Schlacht,
Probablemente era la batalla final
que decidiría el destino del mundo.
Probablemente era la batalla final
que decidiría el destino del mundo.
Cette bataille était sans doute
Probabilmente il destino del mondo 
fu determinato da quell'ultima battaglia...
Era uma batalha final que
decidiria o destino do mundo.
Финальное сражение,
которое определит судьбу мира,