‘Supergirl’ Season 4 Episode 22 Preview: Finale Photos, Plot Details and Trailer

The CW’s Supergirl finishes up season four with episode 22 titled “The Quest for Peace.” The season finale was directed by Jesse Warn from a story by Robert Rovner and Jessica Queller, teleplay by Rob Wright and Derek Simon. “The Quest for Peace” airs on May 19, 2019 at 8pm ET/PT.

The season four cast includes Melissa Benoist as Kara Danvers/Supergirl, Chyler Leigh as Alex Danvers, David Harewood as J’onn J’onzz, Jesse Rath as Querl Dox / Brainiac-5, Mehcad Brooks as James Olsen, Katie McGrath as Lena Luthor, Nicole Maines as Nia Nal/Dreamer, April Parker as Colonel Haley, Andrea Brooks as Eve Teschmacher, and Sam Witwer as Agent Liberty. Returning guest stars include Jon Cryer as Lex Luthor and Brenda Strong as Lillian Luther.

“The Quest for Peace” Plot – 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.

More on Season 4:

Supergirl Season 4 Episode 22
Chyler Leigh as Alex Danvers and Melissa Benoist as Kara/Supergirl in ‘Supergirl’ season 4 episode 22 (Photo: Robert Falconer © 2019 The CW Network, LLC)
Supergirl Season 4 Episode 22
Melissa Benoist as Kara/Supergirl in season 4 episode 22 (Photo: Robert Falconer © 2019 The CW Network, LLC)
Supergirl Season 4 Episode 22
Katie McGrath as Lena Luthor in season 4 episode 22 (Photo: Colin Bentley © 2019 The CW Network, LLC)
Supergirl Season 4 Episode 22
Sam Witwer as Ben Lockwood/Agent Liberty in season 4 episode 22 (Photo: Robert Falconer © 2019 The CW Network, LLC)
Supergirl Season 4 Episode 22
Jon Cryer as Lex Luthor, Brenda Strong as Lillian Luthor and Andrea Brooks as Eve Tessmacher in season 4 episode 22 (Photo: Colin Bentley © 2019 The CW Network, LLC)
Supergirl Season 4 Episode 22
Mehcad Brooks as James Olsen/Guardian in season 4 episode 22 (Photo: Robert Falconer © 2019 The CW Network, LLC)