Battles Lost and Won - Supergirl

SUPERGIRL - Wednesday, October 3, 2018 at 9:00 pm on CW50 - SHOCKING SEASON FINALE - Supergirl (Melissa Benoist) and team take on Serena in an epic battle for Earth. Jesse Warn directed the episode written by Robert Rovner & Jessica Queller (#323). Original airdate 6/18/2018.