"What's Twilight?"
"You're so better off not knowing.

Oliver Queen and Tommy Merlyn[src]

This article contains plot details about an upcoming episode.

"Battles Lost and Won" is the upcoming twenty-third and final episode of the third season of Supergirl, and the sixty-fifth episode overall. It will air on June 18, 2018[1].


Supergirl and team take on Selena in an epic battle for Earth.[2]


  • The episode was previously titled "Supergirl Returns". This was a callback to the 2006 movie "Superman Returns" which starred Brandon Routh.


  1. Legends Of Tomorrow To Take Mondays From Supergirl - DCLegendsTV
  2. 2.0 2.1 2.2 2.3 2.4 Supergirl Season Finale Description: “Battles Lost and Won” - KryptonSite
  3. 3.0 3.1 Supergirl - Episode 3.23 - Battles Lost and Won (Season Finale) - Promos, Promotional Photos + Press Release - SpoilerTV