Supergirlclears up the Kaznian invasion issue.

Red Daughter arrives to find that Lux has betrayed and single-handedly defeated her people.

After all, did she even bother to Google him?

If she had, she mightve learned how much he hates Kryptonians.

Since Lex has made Supergirl public enemy No.

1, Kara sets out to expose him through journalism, vowing, I will not let fear win.

Thankfully, Brainy was able to recover all the notes Baker wiped and she gets to work.

Then Lena receives an offer she cant refuse to meet Lex at the White House.

Do I not understand where National City is located?

How is everyone getting to D.C. so quickly?

Try not to quote Hitler in public, dear.

Itll hurt the brand, Lillian reprimands him.

Thats just good advice, yall.

Superman will burn, he says.

Everyone with a smartphone stops to read How Lex Luthor Divided and Betrayed America.

Nia astral projects to Brainy, who accurately predicted when shed accomplish that task, and extracts her location.

(It involves ions and writing on breath-fogged glass.)

You didnt see that coming, did you, computer boy?

How do you think I did?

Im Supergirl, she replies.

Despite his respect for her glossy cape and perfect hair, he unloads Kryptonite blasts at her.

At first, her Lena-provided Kryptonite suit holds up, but she eventually weakens.

As she dies, she tells Kara, My Alex was nothing like your Alex.

Ashes to ashes, sort of.

When Lex emerges, Karas eyes glow purple.

This is for Red Daugther, she says, laser eye-ing his Lexosuit.

He Icarus-es to Earth, but no, thats not howLex Luthor dies.

He opens a portal to his workshop, where Lenas waiting for him, as he anticipated.

She jabs him in the neck to remove his Harun-El and pulls a gun on him.

Despite his boast that shell never use it, she shoots him in the chest.

Everybody in her life knew, he tells her, and they all mocked her for being foolish.

Kara Danvers is Supergirl.

Lena, of course, is rocked to her core.

I mean, who knows.

James is sporting an eye patch, the new president lifts martial law and reinstates the Alien Amnesty Act.

Haley, as the interim secretary of alien affairs (get it, queen!)

takes to TV to thank Supergirl on behalf of a grateful nation.

Then the gang arrives at Jonns for wine and party games.

to which Lena replies, Always.

Im nervous about this.

Dont make Lena the big bad next season!

Speaking ofSupergirlseason 4, the show plants a few seeds.

And Leviathan is coming, she tells a nervous Eve.

You cant keep a bad Luthor down.

Snaps of the cape

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