|The Fall of Kandor|
|Season 3, Episode 21 (57)|
|Hurricane||City On Fire|
PART 7 OF 8: NEW KRYPTON MAKES ITS FINAL STAND- As Brainiac unleashes an army of drones to lay waste to Kandor, Alura discovers the true mastermind behind recent events. As Kara, Astra, Karen, Zod, and the rest of Krypton's military combat Brainiac and its allies, J'onn shows up in Kandor. Amidst the chaos, the Sisters of Juru begin their coup.
- Melissa Benoist as Kara Danvers
- Chyler Leigh as Alex Danvers (credit only)
- Katie McGrath as Lena Luthor
- Laura Benanti as Alura Zor-El & Astra In-Ze
- Zachary Quinto as General Dru-Zod
- Tyler Hoechlin as Kal-El & Cyborg Superman
- Odette Annable as Reign
- Jenna Dewan as Lucy Lane/Superwoman
- Dianna Agron as Major Raya Zod-El
- Emmy Rossum as Zaora Dru-Zod
- Brenda Strong as Lillian Luthor (credit only)
- Wallis Day as Junior Magistrate Nyssa-Vex
- with Claire Holt as Karen Starr
- and David Harewood as J'onn J'onzz
Special Guest StarEdit
- Sarah Douglas as Jindah Kol Rozz
- Amy Acker as Brainiac
- Chris Browning as Ben Krull/Reactron
- Georgina Campbell as Lieutenant Asha Del-Nar
- Skyler Samuels as Rei Kon-Vex
- Anjali Jay as Indra Nim Gosa
- Robert Gant as Zor-El (hologram)
- and Billy Zane as LX-13
- Antagonists: Brainiac, Lex Luthor, Vril Dox, Lucy Lane, Ben Krull, Cyborg Superman
- Alex, Winslow, Sam, and Lillian do not appear in this episode.
- This episode takes place on June 30, 2020.
- As with several episodes this season, this episode is set entirely on New Krypton.