Season Three


Supergirl (309) - Reign
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While tensions continue to mount between Lena and Morgan Edge, the appearance of a mysterious symbol all over National City points to the arrival of another Kryptonian. And Kara is unsettled when she learns of an ancient prophecy about the Worldkiller, Reign.

U.S. air dates are in MM.DD.YY form.   U.K. air dates are in DD.MM.YY form.

News & Spoilers


Supergirl (Melissa Benoist) 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 (Odetee Annable). Meanwhile, the tension between Lena (Katie McGrath) and Morgan Edge (guest star Adrian Pasdar) continues to build, causing James to step in and offer up some protection, and possibly igniting a spark in the process.

Glen Winter directed the episode written by Paula Yoo & Caitlin Parrish (#309).