Lex Did What? - Supergirl Season 4 Episode 20
Lena is shocked to find out that Lex Luthor has been experimenting on aliens in order to give humans superpowers.

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Photo Credit:
Colin Bentley/The CW
Show:
Supergirl
Episode:
Supergirl Season 4 Episode 20: "Will The Real Miss Tessmacher Please Stand Up?"
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Supergirl Photos, Supergirl Season 4 Episode 20 Photos
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Supergirl Season 4 Episode 20 Quotes

Must be strange to have a sibling with superpowers, huh?

Alex

Start with James Olsen because I would like to know how the hell he got superpowers.

Ben Lockwood