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Supergirl “Not Kansas” Trailer & Preview Clips

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A new episode of Supergirl airs tonight (June 4) at 8PM ET/PT on The CW, and the network has released an “Inside” video, a preview clip, and a trailer to promote it!

The title of the episode is “Not Kansas” and you can find the new videos below. Come by our Supergirl forum to join the countdown!

 

Here’s a description and some official preview images:

KARA CONSIDERS A MAJOR LIFE CHANGE — Kara (Melissa Benoist) makes a major life decision. Meanwhile, J’onn (David Harewood) finds out that special DEO-caliber guns have hit the streets of National City. Dermott Downs directed the episode written by Gabriel Llanas & Anna Musky-Goldwyn (#321). Original airdate 6/4/2018.

SUPERGIRL

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Supergirl -- "Not Kansas" -- Image Number: SPG321b_0026.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Katie Yu/The CW -- © 2018 The CW Network, LLC. All rights reserved.

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About the author

Craig Byrne

Craig Byrne has been writing about Superman TV since 1995, when the "Lois & Clark Krypton Club" launched. He founded KryptonSite.com in February 2001, becoming the first fan site for The WB/CW television series Smallville. He also wrote the Official Companion books for Smallville seasons 4-7 as well as the Smallville Visual Guide.

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About KryptonSite

In a time before social media, Craig Byrne created KryptonSite as the ultimate fan destination for The WB/CW series Smallville which starred Tom Welling, Michael Rosenbaum, Kristin Kreuk, Erica Durance and more. In the decades since, KryptonSite has grown to cover newer Superman-related TV and movie projects while still always holding on to Smallville.

The web’s first source for Smallville news, continuing to cover Supergirl, Superman & Lois, the new Superman films and more!

Copyright © 2026 Craig Byrne & KryptonSite and the respective original authors of posts. Smallville, Kryptonite and other Superman-related items are the property of DC Comics. No infringement is intended.

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