Supergirl Season 2 Episode 22
Supergirl challenges Rhea to battle to save National City. Meanwhile, Superman returns and Cat Grant offers Supergirl some sage advice.
Serie: Supergirl
Director: Glen Winter
Guest Star: Brenda Strong, Calista Flockhart, Curtis Lum, Katie McGrath, Mark Gibbon, Sharon Leal, Teri Hatcher, Tyler Hoechlin