A self-described mad scientist attends a lecture on time travel, stumbles upon the dead body of a familiarly unfamiliar woman, and discovers that his text messages are no longer bound by the rules of space and time.

Okabe is surprised to see Makise up and about after she was killed.

Okabe suspects his microwave oven is behind the recent unusual events.

Suzuha reveals the orgins of SERN's future totalitarianism. While she continues her work to destroy the organization, Okabe and Mayuri continue the search for Suzuha's father.

The truth about Suzuha's father is finally revealed. Okabe realizes the devastating consequences of stopping her from leaving the night of the party.

Okabe must make a time leap in order to save Moeka from herself. He realizes that all is not what it seems as Moeka's shady behavior leads him closer to the IBN 5100.

With the help of Kurisu and Moeka, Okabe attempts to get closer to the IBN 5100 and the mysterious FB. As he closes in on SERN's network, he realizes that the path to victory will not be without additional sacrifice.

Tasked with preventing an impending World War III by an alternate Suzuha, Okabe finds himself playing an active part in Kurisu's death.