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Supergirl: The Quest for Peace (Season 4 finale The CW Sun 19 May 2019)



The Quest for Peace: Lex Luthor (guest star Jon Cryer) descends upon Washington, DC and summons Lena (Katie McGrath) and Lillian Luthor (guest star Brenda Strong) to the White House. Supergirl (Melissa Benoist) realizes she has one last chance to stop Lex and turns to the power of the press to help her.

Jesse Warn directed the episode with story by Robert Rovner & Jessica Queller and teleplay by Rob Wright & Derek Simon.

Season finale.

Airdate: Sunday 19 May 2019 at 8.00pm on The CW.

Season 4, Episode 22