Kara Danvers : The Lena in this timeline might never forgive me. She might even hate me. You know what? You know what? If Sam stops her from going down a dark path, I can live with that.
Mxyzptlk : Except you literally can't.
Kara Danvers : What do you mean?
[he snaps, and she watches the sky turn green]
Kara Danvers : Oh, my god. This is the night Agent Liberty poisoned the air with kryptonite.
Mxyzptlk : Uh, you know what? Maybe we should shut this off, huh?
Kara Danvers : No, no, no. Lena saved me the first time. She might hate me, but she'll save me again.
Mxyzptlk : She wants to, but she'll never make it in time.
[Kara watches her heartbeat flatline, and the scene changes to Alex at Kara's grave]
Alex Danvers : Hey, Kara. I'm sorry I missed Thanksgiving. We're just... we so lost without you. I... am so lost without you.
Kara Danvers : Okay, uh, before we do this, Mxy, I need your word that if thing go sideways, you'll put it all back to normal.
Mxyzptlk : I am court-ordered to do so.
["beeping" her nose]
Mxyzptlk : Boop. Now, no shade to the Super Friends, but it tends to work better when it's just me and the subject. So, do you two have any plans?
Alex Danvers : No, I don't think so.
J'onn J'onzz : No. No, we were just gonna...
Kara Danvers : [Mxy snaps, and they vanish] What... where did they go?
Mxyzptlk : Oh... they're in their happy place.
Alex Danvers : [transition to them playing paintball] Magic rules!
J'onn J'onzz : Game on, Danvers!
Alex Danvers : Okay, I'm sorry, I'm confused. This is your all-powerful Fifth-Dimensional stalker?
Kara Danvers : No. I don't know who this is.
Mxyzptlk : I am Mr. Mxyzptlk, just as I'm sure that you, Kara Danvers, are Suuuuuuu...
Kara Danvers : [pulling him inside] Ah, get in here!
Mxyzptlk : Thank you so much. I can't just come in anymore. I have to be invited.
J'onn J'onzz : You're not seriously thinking of doing this, are you?
Kara Danvers : What if I *could* change things? If I told Lena that I was Supergirl before Lex, maybe she would have reacted differently. I mean, isn't that worth a try?
Alex Danvers : Changing history to save a friendship? Kara, I don't... I don't know.
Kara Danvers : This is changing history to *save* history, 'cause Lex and Lena are planning something horrible, and we are no closer to finding out what that is. And when the fight comes... I don't know if I have what it takes to stop her.
Kara Danvers : Tell me who you are and what you want, now.
[Mxy snaps his fingers, and on her TV, she sees the memory of their first encounter]
Mxyzptlk : I'm your one true love, your soul mate, your one true pairing, as the kids say. My name is Mxyzptlk, and I love you Kara, Zor-El.
Kara Danvers : Okay. If you...
[gasping as she sees him sitting Indian-style on her kitchen island]
Alex Danvers : Oh, come on.
J'onn J'onzz : Kara, are you sure you can trust Mxy?
Kara Danvers : No. But the tape recorder worked. I... I could always just use it to get him to go away.
Alex Danvers : All right, listen to me. If you really think that this is your best chance to set things right with Lena before she hurts somebody... then do it.
Kara Danvers : Okay. Uh... how do I do this? Um...
Mxyzptlk : [materializing in and climbing out of her fridge] Thank Zook you changed your mind. Yes, I'm still working on eavesdropping. That's a problem.