![‘Supergirl’ Season 2, Episode 20 Live Stream, Where To Watch Online, Spoilers: ‘City of Lost Children’ [Spoilers] - Matt Winkelmeyer/Getty Images](https://cdn-assets.en.koreaportal.com/common/images/preload.png)
May 08, 2017 AM EDT - Tarun Mazumdar
‘Supergirl’ Season 2, Episode 20 shows Phorian race's alien attacks National City.
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