Still reeling after learning about Lena's secret, Supergirl asks Guardian for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the team brace for an epic battle.
Did You Know?
In DC comics the Kryptonian Demon is a deity as Krypton had its own Hell and demonic entities that were destroyed along with the planet. See more
Katie McGrath slips into her native Irish accent at several points through this episode. See more
I've had your back so many times. When the rest of the world was ready to pass you off as the new Lex Luthor.
My friend came to me. She was alone and afraid. I had to do something.