Supergirl Discovers Part of Krypton Survived in New Episode Promo

“SUPERGIRL LEARNS A STUNNING SECRET ABOUT KRYPTON – Supergirl (Melissa Benoist) is stunned to discover that a part of Krypton survived.

Following last night’s episode of the series, The CW has released the first promo for the next episode of Supergirl featuring the reveal that part of Krypton survived along with a shocking family secret…

Meanwhile, Alex (Chyler Leigh) is attacked while out with Ruby (guest star Emma Tremblay), and Lena (Katie McGrath) considers how far she will go to keep Reign contained.”