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. 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
  • Alex, Maggie, Sam, Lucy, and J'onn do not appear in this episode.
  • 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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