Watch Supergirl Season 3 Episode 23 online via TV Fanatic with over 1 options to watch the Supergirl S3E23 full episode. Affiliates with free and paid streaming include Amazon.

Episode Details

On Supergirl Season 3 Episode 23, Supergirl and the team take on Serena in a battle to keep Earth away from the villains, but does everyone make it out alive?

Rating: 3.5 / 5.0 (103 Votes)
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Supergirl Season 3 Episode 23 Quotes

Kara: You're all clear kid. Now let's blow this thing and go home.
Brainy: I assume that's some sort of film reference.
Kara: We never showed you Star Wars? Not a single Star War?

J'onn: I'm not ready.
M'yrnn: You are. You looked into the flames and you had no fear.
J'onn: That's because you were with me.
M'yrnn: That will never change, J'onn. Never.