|Season 9, Episode 15|
OFF-WORLD- A surprise attack from Reign proves dangerous enough that Kara and Lena need to escape to the unknown realities that were not consumed or conflated by The Convergence. Lucy begins her investigation into the Luthor Administration. Samantha Arias meets with her government contacts.
- Melissa Benoist as Kara Danvers/Supergirl & Kara Zor-El (Earth-61)
- Chyler Leigh as Alex Danvers & Lexie Danvers
- Katie McGrath as Lena Luthor & Lena Danvers
- Odette Annable as Reign & Samantha Arias
- Olivia Wilde as Susannah Russo & Sue Danvers
- Tyler Hoechlin as Clark Kent/Superman
- Claire Holt as Brainiac (Karen Starr drone)
- Adelaide Kane as Ava Blackwood
- Minka Kelly as Dawn Granger/Dove
- Jenna Dewan as Lucy Lane
- Emmy Rossum as Zaora Dru-Zod
- with Laura Benanti as Astra In-Ze
- Mehcad Brooks as James Olsen (credit only)
- and David Harewood as J'onn J'onzz (credit only)
Special Guest Stars
- Antagonists: Reign, Brainiac
- Karen, James, and J'onn do not appear in this episode.
- This episode takes place on August 4, 2024.
- This episode is named for the book by Cormac McCarthy.