Supergirl investigates a mysterious symbol popping up all over National City, tracing its origins back to an ancient prophecy and the mark of the World Killer, Reign. Meanwhile, the tension between Lena and Morgan Edge continues to build, causing James to step in and offer up some protection, and possibly igniting a spark in the process.

Aired: December 4, 2017

Supergirl - Reign (s03e09)

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  • Show

    Season 3, Episode 9

  • First aired

    December 4, 2017
    on The CW

  • Director

    Glen Winter

  • Writer

    Paula Yoo, Caitlin Parrish

  • Guest stars

    Carl Lumbly, Chad Lowe, Erica Durance, Emma Tremblay, Amy Jackson, Briana Venskus, Adrian Pasdar

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