Dark Side of the Moon Supergirl : Season 3 Episode 20
TV-PG The CW 43m
Aired: May 28th, 2018 @ 9:00 PM EST on The CW
Supergirl is stunned to discover that a part of Krypton survived. Meanwhile, Alex is attacked while out with Ruby, and Lena considers how far she will go to keep Reign contained.
