Leviathan's leader comes after Lena to get the medallion, and Lena convinces Supergirl to take her to the Fortress to find a weapon capable of stopping him. Kelly makes a confession to Alex, and John reaches out to his brother.


Season Number: 5

Episode Number: 7

Episode Title: Tremors

Air Date: Nov 17, 2019

Source: Supergirl.S05E07.720p.HDTV.x264-AVS