Lex Luthor (Jon Cryer) is coming to National City and it sounds like he has a pretty big agenda as he looks to exact his revenge on the Man of Steel (Tyler Hoechlin) and also deliver maximum damage to his cousin, the titular Girl of Steel (Melissa Benoist).
While Superman isn't expected to appear next week, it does look like he'll be making his way back to National City at some point during the final third of this ongoing fourth season to lend Kara a hand against his menacing archenemy.
"O Brother, Where Art Thou?" - (8:00-9:00 p.m. ET) (TV-PG, V) (HDTV)
JON CRYER GUEST STARS AS ICONIC DC COMICS' VILLAIN LEX LUTHOR - Secretly furloughed from prison due to failing health, Lex Luthor (guest star Jon Cryer) visits his sister, Lena (Katie McGrath), to seek her help finding a cure. Savvy as ever, Lena is suspicious of Lex's motives but when she's faced with a life and death situation, she must decide how she truly feels about her brother. Meanwhile, Supergirl (Melissa Benoist) and J'onn (David Harewood) face off against Manchester Black (guest star David Ajala). James' sister Kelly (guest star Azie Tesfai) comes to town. Tawnia Mckiernan directed the episode written by Derek Simon & Nicki Holcomb (#415). Original airdate 3/17/2019.
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Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415a_0473b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl and David Harewood as Hank Henshaw/JÕonn JÕonzz -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415a_0591b.jpg -- Pictured (L-R): David Ajala as Manchester Black and David Harewood as Hank Henshaw/JÕonn JÕonzz -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0023b.jpg -- Pictured: Jon Cryer as Lex Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0114b.jpg -- Pictured: Jon Cryer as Lex Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0189b.jpg -- Pictured (L-R): Katie McGrath as Lena Luthor and Jon Cryer as Lex Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0202b.jpg -- Pictured (L-R): Jon Cryer as Lex Luthor and Katie McGrath as Lena Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0257b.jpg -- Pictured: Katie McGrath as Lena Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0482b.jpg -- Pictured (L-R): Andrea Brooks as Eve Tessmacher and Katie McGrath as Lena Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0596b.jpg -- Pictured (L-R): Katie McGrath as Lena Luthor and Jon Cryer as Lex Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0621b.jpg -- Pictured: Jon Cryer as Lex Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0692b.jpg -- Pictured: Jon Cryer as Lex Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0816b.jpg -- Pictured (L-R): Jon Cryer as Lex Luthor (far left) and Katie McGrath as Lena Luthor (center right) -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Supergirl -- "O Brother, Where Art Thou?" -- Image Number: SPG415b_0935b.jpg -- Pictured: Katie McGrath as Lena Luthor -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.
Season three saw Supergirl stop Reign and the other Worldkillers’ threat to humanity and our planet, and in the process, Kara was shocked to find her mother Alura alive and living in a salvaged Argo City that survived the destruction of Krypton. Reconnecting with her past caused Kara to realize that her true home is now here on Earth, where big changes are taking place for her and all of her friends in National City – and also, it appears, for a doppelganger in Russia! Season four promises to be full of surprises, action, adventure and lots of big revelations for Supergirl, Alex, James, J’onn, Lena and Brainy.
Supergirl features:
Melissa Benoist as Kara Zor-El/Supergirl
Mehcad Brooks as James 'Jimmy' Olsen/Guardian
Chyler Leigh as Alexandra 'Alex' Danvers
Jeremy Jordan as Winslow 'Winn' Schott
David Harewood as J'onn J'onzz/Martian Manhunter
Katie McGrath as Lena Luthor
Jesse Rath as Querl Dox/Brainiac 5
Sam Witwer as Ben Lockwood/Agent Liberty
Nicole Maines as Nia Nal/Dreamer
April Parker Jones as Colonel Haley
David Ajala as Manchester Black
Rhona Mitra as Mercy Graves
Robert Baker as Otis Graves
Erica Durance as Alura Zor-El
Supergirl returns with a brand new episode on March 10