From Arrow and The Flash's Greg Berlanti and Ali Adler, Supergirl finally comes flies onto the small screen in the form of Glee star Melissa Benoist. The series will focus on Kara Zor-El after she escaped amid its destruction years ago. Since arriving on Earth, she's been hiding the powers she shares with her famous cousin (cough, Clark Kent, cough). But now at age 24, she decides to embrace her superhuman abilities and be the hero she was always meant to be. Calista Flockhart, Chyler Leigh, Mehcad Brooks, Dean Cain and Helen Slater also star.