Oh, did you think you were ready for Crisis?

Oh, the cameos!

And its only the first hour, people!

Grant Gustin, Melissa Benoist, Tyler Hoechlin, Ruby Rose, and Brandon Routh on ‘Supergirl’

Grant Gustin, Melissa Benoist, Tyler Hoechlin, Ruby Rose, and Brandon Routh on ‘Supergirl’.Dean Buscher/The CW

Buckle up; from here on out, the action doesnt stop.

And now its time for the cameos.

Do you need a second?

Because I need a second.

They really did the damn thing.

Now, to the main action on Earth-38, where a doomsday prophet (Wil Wheaton!)

She whisks him to the DEO, which has just been rocked by a planet-wide earthquake.

Then a Supergirl hologram appears Kara?

Lois asks to warn them to get the heck out of there.

(A modest proposal: Consider adult-sized spacecraft in the future?)

His ship makes it out, and Kara weeps as she watches the destruction of her Kryptonian family.

And were next, Brainy warns.

Just go with it.)

Dicey, of course, after the events ofSupergirlspast season, but Jonns optimistic everyone will agree.

These Supers are, indeed, super.

Elsewhere in the DEO, Oliver presents Mia with her own suit.

You earned it, he says, reaffirming how grateful he is for the time he had with her.

These Smoak/Queens are, indeed, also super.

Its a good reminder: tread cautiously when striking bargains with all-powerful space gods.

They tensely get to work.

2046 Oliver is there, too, grizzled, tired, and wracked with guilt.

Youre a good man, on every earth, she concludes.

Turns out, 2046 Oliver Queen is the saddest Oliver Queen, and when he cries, we cry.

Barry straight up speed-runs through a whole mess of demons, while Mia saves Oliver with a well-placed arrow.

Now they just need Lena to finish the portal so they have somewhere to evacuateto.

Ms. Luthor just cant help herself!

With the portal up, the evacuation begins in earnest.

Its a chaotic battle, and its one the Monitor declares is lost.

Has the planet been evacuated yet?

The answer is no, and he insists on staying to fight.

After the destruction of the planet, the Monitor deposits Olivers battered body on Earth-1 Star City.

With his last breaths, Oliver assures his friends that this was his destiny.

Then he again asks Mia to tell Felicity that he loves her, along with his children.

You keep me in your heart, okay?

he asks before falling still.

Snaps of the cape

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