|Season 9, Episode 16|
|The Road||All Good Things|
ROUND TRIP- On their trip around the surviving independent realities, the team stumbles across the remnants of Earth-28. While hiding from Reign, Lena makes a horrific discovery concerning The Colony.
- Melissa Benoist as Kara Danvers/Supergirl & Red Daughter
- Chyler Leigh as Alex Danvers
- Katie McGrath as Lena Luthor
- Odette Annable as Reign & Samantha Arias
- Olivia Wilde as Susannah Russo
- Tyler Hoechlin as Clark Kent/Superman
- Claire Holt as Kara Zor-L/Power
- Adelaide Kane as Ava Blackwood (credit only)
- Minka Kelly as Dawn Granger (Earth-28)
- Michael Rosenbaum as Lex Luthor (Earth-30) (credit only)
- Emmy Rossum as Zaora Dru-Zod
- with Laura Benanti as Astra In-Ze
- with Mehcad Brooks as James Olsen
- and David Harewood as J'onn J'onzz (Earth-28)
Special Guest StarEdit
- James Frain as Nekron
- Antagonist: Reign
- Ava and E30 Lex do not appear in this episode. The primary counterparts of Karen, Dawn, and J'onn do not appear in this episode, either.
- This episode takes place on August 17, 2024.
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