Professor!
- Bobby. - Hey, Storm.
Hey, kid.
Professor, you made it.
Whenever the Sentinels attack, Warpath spots them...
then I send Bishop back to warn us of the attack before it happens.
Blink scouts the next site...
and then we leave before they ever know we were there.
Because... we never were.
What do you mean you were never there?
She projects Bishop back in time a few days to warn the others...
of the coming attack.
So she sends Bishop back in time?
No, just his consciousness, into his younger self.
His younger body.
Wow.
This might just work, Charles.
What might work?
The Sentinel Program was originally conceived by Doctor Bolivar Trask.
In the early '70s, he was one of the world's leading weapons designers.
But, covertly, he had begun experimenting on mutants...
using their gifts to fuel his own research.
This is extraordinary.
There was one mutant who had discovered what he was doing.
A mutant with the ability to transform herself into anyone.
Mystique.
I knew her as Raven.
We met when we were children, grew up together.
She was like a sister to me.
I tried to help her...
but only succeeded in driving her away.
She hunted Trask across the world.
And at the Paris Peace Accords in 1973, after the Vietnam War...
she found Trask...
and killed him.
It was the first time she killed.
It wasn't her last.
But killing Trask did not have the outcome she expected.
It only persuaded the government of the need for his program.
They captured her that day...
tortured her, experimented on her.
In her DNA, they discovered the secrets to her powers of transformation.
It gave them the key they needed...
to create weapons that could adapt to any mutant power.
And in less than 50 years...
the machines that have destroyed...
so many of our kind were created.
But it all started that day in 1973...
the day she first killed.
The day she truly became...
Mystique.
You want to go back there.
If I can get to her, stop the assassination...
keep her out of their hands...
then we can stop the Sentinels from ever being born.
And end this war before it ever begins.