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 suspects his microwave oven is behind the recent unusual events.

Okabe needs to find a very old computer to hack a very new tech.

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

In order to continue his work against SERN, Okabe must finally choose between saving Kurisu or Mayuri.