Watch Supergirl Online: Season 2 Episode 21

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How did everyone feel about the return of Cat Grant?

That was addressed on Supergirl Season 2 Episode 21 when the former character appeared in National City to help out with the looming threat of Rhea.

With Supergirl at odds with the President over how to deal with Rhea, Cat had a daring plan that could help save everyone. 

Meanwhile, Alex did not want to work with Lillian, but she was forced to. 

Use the video above to watch Supergirl online to get up to speed with the latest drama for the characters.

Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.

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Supergirl Season 2 Episode 21 Quotes

Good evening, National City, it's Cat Grant. Yes, I've been away for awhile, but I'm back. Now I can imagine that you're feeling afraid and feeling like your world is spinning out of control. But believe me, you have a power. And right now, you have a job to do. Resist. Resist these invaders with everything you've got. They come with empty promises and closed fists. They promise to make our world great again, and yet they know nothing about the people who make this world great.

Cat

President Marsdin: [After showing her alien face] I suppose I owe you an explanation.
Cat: Well at least tell me you're still a Democrat.