S01E01 Missing Link of the Annihilator -Absolute Zero-
Though WWIII is on the horizon, Okabe attempts to live a normal college life. However, a newly developed AI is about to shake up his world.
As Suzuha sets off to finish her mission, Mayuri finds determination of her own. But then, disaster strikes.
Eccentric Rintaro falls into a depression after failing to save Kurisu, but then a neuroscientist offers him the chance to interact with an AI copy.