City On Fire
Season 3, Episode 24
Vital statistics
Air date Unaired
Written by Illyriarocks
Directed by Illyriarocks
Episode guide
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The Fall of Kandor The Kryptonian Cure
City On Fire is the twenty-fourth and final episode of Supergirl Season 3 and the 66th episode overall.


PART 2 OF 2: PLANETFALL- As Kandor burns, Kara and company attempt to evacuate the city with minimal casualties. As a last resort, J'onn heads into the breach himself to finally destroy Brainiac. Lex activates the "Kryptonian Contingency". The DEO learns they are cut off from communication with New Krypton. Alex helps Maggie and Cat readjust to being back on Earth.

Main CastEdit

Special Appearance ByEdit

Special Guest StarsEdit

Recurring CastEdit



  • Antagonists: Brainiac, Lucy Lane, Vril Dox, D.I.S.C.O.R.D., Lex Luthor, Sam Lane, Cyborg Superman, Ran-Zod (flashbacks)
  • 9th episode this season to feature all main characters.
  • This is the third season finale to feature Kara, James, Alex, Winn, J'onn, Cat, and Clark.
    • This is the second season finale to feature Maggie, Lena, Non, Lucy, Max, General Lane, Vasquez, Alura, and Zod.
  • This episode is set on June 30, 2020.
    • This is the first season finale to feature Brainiac, Lex, Lois, D.I.S.C.O.R.D., Astra, Coville, Lesla, and Karen.



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