Sneak Peek new footage, images and synopsis from the "Supergirl" episode "Nevertheless, She Persisted", written by Andrew Kreisberg, Jessica Queller, Robert Rovner, Caitlin Parrish and directed by Glen Winter, airing May 22, 2017 on The CW:
"...while 'Supergirl' (Melissa Benoist) fights for her city, 'Superman' returns.
"Then Supergirl challenges 'Rhea' (Teri Hatcher) to battle to save 'National City'.
"Meanwhile, Superman (Tyler Hoechlin) returns and 'Cat Grant' (Calista Flockhart) offers Supergirl some sage advice..."
Click the images to enlarge and Sneak Peek "Supergirl: Nevertheless, She Persisted"...