“LEX LUTHOR RETURNS – 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.”
The CW has released the first promo for the Supergirl season 4 finale titled “The Quest for Peace,” a reference to the Superman sequel of the same name.
New episodes of Supergirl premiere Sunday at 8/7c on The CW.