Supergirl season 4 finale spoilers: Jon Cryer returns as Lex Luthor

Before Supergirl season 4 officially comes to a close, know this: You’re going to have one last chance to see Jon Cryer as Lex Luthor. This episode is entitled “The Quest for Peace,” which is an obvious homage to one of the old-school Superman movies, but it just so turns out that this could be as important of a story for Kara as a reporter as it is Supergirl a hero. That’s the big difference with the end of this season — last year, reporter Kara was thrown almost completely to the side. This season, she’s getting a whole lot more time to shine and she may be the one thing that actually keeps the world from falling apart.

Ultimately, can good journalism change the world? We believe that it can, but for Supergirl as a whole the challenge will be presenting it in a way where the message really resonates, and is striking just as much as any epic superhero battle. We’ve already seen a number of those already, so we know that the show is capable of making them stand out.

Below, CarterMatt has the official Supergirl season 4 finale synopsis with more news as to what’s coming:

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.

This episode will mark the conclusion of the Lex Luthor arc presumably, unless the folks over at DC Comics are kind enough to let him appear at some point in the future. This could be the last chance for Supergirl to stop him! It’s about utilizing the press, and also seeing precisely what comes out of this Luthor family reunion. We do think that this is as worth the price of admission for the finale as anything — getting to see these three titans all in one place so that they can battle it out. (The clash of the titans jokes here are so obvious, we hardly need to point any of them out.)

If you haven’t seen it yet, we recommend checking out our full piece about Jon Cryer and how he’s helped to change the game for all comic-book villains.

Will this finale in some way set up season 5? You have to believe in that as a possibility mostly because of the history of this show. Season 2, for example, set the stage for the arrival of Reign and the Worldkillers to the series. Meanwhile, season 3 effectively set the stage for Red Daughter — we didn’t quite know what it meant at the time in which the finale tag was presented. As a matter of fact, the writers took their time to set things up this season with it.

For some other information when it comes to Supergirl…

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What do you want to see on the Supergirl season 4 finale, and are you psyched to see Jon Cryer turn up as Lex? Be sure to share in the comments. (Photo: The CW.)