S4·E21 Red Dawn
Narrative Classification: Pre-finale climax accelerating overarching mythology and major character reckonings.
Synopsis
Kara comes face to face with Red Daughter and the two engage in an epic battle. Determined to find a way to extract the Harun-El, Lena turns to an unlikely source for help - Lillian Luthor. Meanwhile, Alex realizes she's missing parts of her memory, and Brainy, Nia and J'onn set out to track down aliens who have been abducted by Lex.
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Frequently Asked Questions
When did Season 4 Episode 21 of Supergirl air?
Season 4, Episode 21 ('Red Dawn') originally aired on May 12, 2019.
How long is Season 4 Episode 21 ('Red Dawn')?
The episode follows the standard broadcast runtime for Supergirl.
What happens in Supergirl Season 4 Episode 21?
Kara comes face to face with Red Daughter and the two engage in an epic battle. Determined to find a way to extract the Harun-El, Lena turns to an unlikely source for help - Lillian Luthor. Meanwhile, Alex realizes she's missing parts of her memory, and Brainy, Nia and J'onn set out to track down al...