we are now the proud owners of the last fragment
of the Spear of Destiny.
That's all I get is a "Copy"?
Guys, I'm standing on the freakin' moon!
Yeah, about that.
The, uh, the Waverider has sustained major damage, Dr. Palmer.
Same for the Jumpship.
等等 逃生舰 那就是说...
Wait, the Jumpship... that means...
Unless you can figure out a way to launch the LEM...
you're stranded on the moon.
And now I know how Matt Damon felt.
I'm Dr. Raymond Palmer.
Time traveler, superhero,
and most recently, astronaut.
It's April 13th, 1970, at 2200 hours,
and I am stranded on the moon.
Fuel on the LEM is close to zero.
The food and water provisions
were designed to last days, not months.
我要利用科学的方法生存下去I'm gonna have to science the crap out of this.
What are you doing?
I'm filming us for posterity.
In case we don't... make it back.
I'm not dying on the moon.
Sign-- signing off.
Certainly not doing it in a tin can with the likes of you.
And to that end, I propose an alliance.
You untie me and we'll figure out a way
to get ourselves off this rock.
And I'll play nice until we get back to Earth.
Not a chance.
And for your information, I already have a plan.
All I have to do is transfer the fuel source from my exo-suit
and power the fuel cells.
Use the dwarf star to power the LEM.
Yeah, that should work.
Of course you've taken the gas spectrometer into account.
Well, unless you adjust for the relative volatility
of dwarf star, then the LEM could explode mid-launch.
I'm a scientist from the future
and I'm here to tell you, this is two-person patch job.
Look at it this way:
If I'm lying, we're both dead.
We'll be over Ray's launch position in 18 minutes.
We only get one chance at this intercept
before the moon's gravity slingshots us back to Earth.
You need to understand how time travel works.
My grandfather understands it just fine.
You can't return to 1956.
- Amaya. - Why?
Every time we change history,
we create what we call an Aberration.
Now, if your son grows up with you around,
he could become an entirely different person,
choose a different life.
That, in turn, could change Nathaniel
and the person he becomes.
If he's even born at all.
She doesn't know that.
But it's a possibility?
Why didn't you tell me?
Because my dad needs you.
And as much as I want to protect history,
I want to protect our family more.
We both should have learned by now, the mission comes first.
Thank you for telling me.
I was just trying to protect you.
Nathaniel, changing your family's history
would have changed you.
And in case I haven't made it clear,
I like who you are.
You and I don't have a future together.
What do you mean?
When you stowed aboard the Waverider,
we pulled you from the timeline.
Back in 1942,
you have a destiny waiting for you.
How do you know all this?
Ray told me.
He knows your granddaughter.
I don't think I should be hearing this.
Ask Ray what happens to your village.
Ask him what happens to your daughter and your granddaughter,
then tell me,
tell me you'll choose history over your own family.
That offer to clear the air still good?
So long as it doesn't involve punching me in the jaw again.
I'm sorry about that.
After five years,
I found myself blaming you for the choice I made.
Turns out that abandoning my wife and son,
even to save the world, was... a mistake.
Oh, it's the great irony of time travel,
that, despite it, we still find ourselves living with regret.
One of mine is that I couldn't find
a better way to protect the Spear.
One that would've...
spared you such a personal sacrifice.
When you showed up, I thought maybe I could go back,
But what's done is done.
All we can do now is look forward.
Oh, I gotta say, you really turned this team around.
When I met the Legends in 1942,
they were constantly bickering.
Unable to work together in any cohesive way.
Actually, I'm not the one who deserves your praise.
Menial labor without superspeed is really quite tedious.
Then again, I've missed working with a fellow scientist.
Cisco and Caitlin and I, as you know,
worked together for some time and...
I miss the camaraderie.
Legion of Doom doesn't have Karaoke Fridays?
I know it's easier for you to think of me as a monster.
But, um, I've met some of history's monsters, Raymond,
and believe me,
I'm not one of them.
You killed Barry's mother.
Brainwashed Rip into killing Dr. Mid-Nite.
Time travel has a way of revealing the truth to you.
And you and I have more in common than you think.