The Season 4 finale of Supergirl sees Lex Luthor enact his master plan with only the Girl of Steel able to stop the unrepentant villain, with the episode bearing a familiar title to longtime Superman fans.
Titled "The Quest for Peace," the season finale of the popular CW series directly references 1987's Superman IV: The Quest for Peace. A critical and commercial failure that dubiously marked the final appearance of Christopher Reeve as the Man of Steel, the movie is generally regarded as the worst Superman movie. The film had Arrowverse Lex Luthor actor Jon Cryer in an early supporting role as Lex's conniving nephew, Lenny Luthor.
SUPERGIRL
“The Quest for Peace” — (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)
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. Jesse Warn directed the episode with story by Robert Rovner & Jessica Queller and teleplay by Rob Wright & Derek Simon (#422). Original airdate 5/19/2019.
With Lex himself traveling to Washington, D.C. as part of his bid for power, Supergirl will not only to have confront the villain but definitively clear her name to the American people putting her faith in the power of the press to support her.
Airing Sundays at 8 p.m. ET/PT on The CW, Supergirl stars Melissa Benoist as Kara Danvers, David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen and Chyler Leigh as Alex Danvers.