Paul Millard's Time Travel Chronicles II: The Chosen

After an extinction level event one-hundred fifty-four years earlier that killed almost all of humanity and destroyed all but a small fraction of human-built structures, the underground believes the Binarians, an Artificial Intelligence race who rules the earth, were responsible.
After the event, Binarian memory chips were rebooted, leaving them no proof of their innocence. However, current Binarian programming requires them to save all remaining humans at all costs, not kill them.
But if not the Binarians, then who?
Every person and every Binarian Paul meets tells him he is The Chosen who will provide answers and save what’s left of his species. Paul has no idea why. Were they mistaken? Is it possible they were right?
No one could have predicted what happens next.

The truth is always in the eyes.