Title: Fallout

Directed By: Harry Jierjian

Air Date: October 21st, 2018

Written By: Maria Maggenti & Daniel Beaty

Official Description: CHAOS IN NATIONAL CITY — A shocking revelation causes chaos in National City. Supergirl sets out to capture Mercy Graves (guest star Rhona Mitra), while Alex takes control at the DEO. Back at CatCo, Kara decides to write an investigative story on Mercy and asks Lena if she can interview her as Mercy has ties to the Luthors. Meanwhile, Brainy meets Nia and the two end up in a precarious situation.

Reoccurring Cast:

Guest Stars: Mercy Graves (guest star Rhona Mitra)

Special Notes: