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Reign

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: Dec 04, 2017 Genre: Drama Sci-Fi & Fantasy Action & AdventureCasts: Melissa Benoist Chyler Leigh David Harewood Katie McGrath Odette Annable Chris Wood Jeremy Jordan Mehcad BrooksCreated By: Greg Berlanti Ali Adler Andrew KreisbergProducers: Paula Yoo Caitlin Parrish Glen WinterDuration: 42m Rating: 3.4 Country: United States of America Production: DC Entertainment, Berlanti Productions, Warner Bros. Television