Eliza comes to town to celebrate Thanksgiving with her daughters. Alex decides it's time to come out to her mother; Kara is shocked when Eliza suggests Mon-El has feelings for her, and Winn and James consider telling Kara the truth about the Guardian. Meanwhile, CADMUS unleashes a virus that instantly kills any alien in the vicinity so Kara enlists an unexpected ally - Lena Luthor. The epic superhero crossover kicks off tonight when Barry Allen and Cisco Ramon seek Kara's help with an alien invasion on their Earth.
Did You Know?
At the beginning of the episode, James and Winn argue about who gets to tell Kara that James is the Guardian; why they're bothering to whisper is a mystery, since they both know she has superhuman hearing. Even more odd is the fact that she doesn't seem to hear them, even though a similar whispered conversation in "Supergirl: Blood Bonds
" is how she discovered J'onn's real identity. See more
You're a monster, and I'm gonna send you back to hell.
You're finally right, Henshaw. I am a monster.
[J'onn transforms into a giant Martian and attacks him
Featured in The Flash: Invasion!
Performed by Martinez & Guthrie See more