S10E5: Back to the Pilot
Stop! Both of you! What the hell?
Who are you? We're you, from the future.
Oh, boy, this can't be good news. Who screwed up?
Take a wild guess.
What did I do? Well, nothing yet, but listen.
Whatever you do, you cannot tell your former self, that Brian, about 9/11.
If you do, America as you know it will cease to exist.
My God, Brian. What the hell?