"Medusa"[1] is the eighth and midseason finale episode of the second season of Supergirl, and the twenty-eighth episode overall. It aired on November 28, 2016.
Synopsis
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.[1]
Appearances
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Characters
Protagonists
Antagonists
Other Characters
Teams and Organizations
Events
Species
Objects and Concepts
Locations
Notes
- The final scene of the episode was reused in the following crossover episode of The Flash.
Gallery
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A portal interrupts Thanksgiving dinner
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End Card
Promotional Images
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Supergirl's Invasion!