Synopsis

Eliza arrives in town for Thanksgiving, eager to share the holiday with her daughters. Alex resolves to finally come out to her mother. Kara is taken aback when Eliza suggests Mon-El harbors feelings for her, while Winn and James contemplate revealing the truth about the Guardian to Kara. Simultaneously, Cadmus unleashes a virus that instantly kills any alien in the area, prompting Kara to seek assistance from an unlikely source: Lena Luthor. The grand superhero crossover begins tonight, as Barr