Nova Day
Season 3, Episode 17
Vital statistics
Air date Unaired
Written by Illyriarocks
Directed by Illyriarocks
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The Trial of Kal-El The Swarm

Nova Day is the seventeenth episode of Supergirl Season 3 and the 59th episode overall. It is the second part of the 5-part TRIAL storyline, focusing on the political strife on New Krypton.


A PLANETARY CELEBRATION- With the occurance of Nova Day, an annual religious holiday where all crime can be absolved by the Mediator Guild, the trial ceases. During the festivities, Zod's assassin strikes; Kara pursues. Karen informs Kara that Lena stowed away on Astra's ship. Kal-El shows compassion for an enemy. Lesla-Lar returns to New Krypton with a deadly agenda, while Alura finally falls out with her family.

Main Cast

Recurring Cast



  • Antagonists: Ral-Dar, Lesla-Lar
  • Maggie, Sam, Lucy, Lex, Banks, Ruby, and J'onn do not appear in this episode. Alex and Coville only appear as hallucinations.
  • 3rd episode this season in which Earth does not appear.
  • Lena and Kara interact for the first time since Brave Enough.




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