Watch Supergirl Online: Season 5 Episode 18

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Did Lena choose to fight on the side of good or evil?

On Supergirl Season 5 Episode 18, the tech guru learned the true extent of Lex's plans and had to decide whether she was a hero or a villain. 

Kara, Nia, and Brainy - Supergirl Season 5 Episode 18

Meanwhile, Supergirl made a decision about who to target first: Leviathan or Rama Khan. 

Elsewhere, Lex realized that his plan was not as good as he first thought. 

Was it the end of the line for him?

Use the video above to watch Supergirl online right here via TV Fanatic. 

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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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Supergirl Season 5 Episode 18 Quotes

Don't worry, I turned the Sun red. I think we can fix one broken inmate.


Where there is smoke, there is a Luthor.