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Supergirl S3E21 poster

Watch Supergirl – Season 3 Episode 21: Not Kansas

Supergirl • Season 3, Episode 21 • 42 min • 2015 • ⭐ 7.3/10 • Action & Adventure , Drama , Sci-Fi & Fantasy

Cast: Katie McGrath , Melissa Benoist , Chyler Leigh , David Harewood , Jesse Rath , Nicole Maines , Azie Tesfai , Julie Gonzalo , Staz Nair , Peta Sergeant

Directors: Greg Berlanti , Andrew Kreisberg , Ali Adler

Watch Supergirl – S3E21

Episode Overview

Kara makes a major life decision. Meanwhile, J'onn finds out that special DEO-caliber guns have hit the streets of National City.

Episode Navigation

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