VIDEO: Melissa Benoist In All-New Promo for CBS's SUPERGIRL

ET shared an exclusive sneak peek at the superhero drama SUPERGIRL, premiering Oct. 26 at 8:30 p.m. ET/PT on CBS. Check it out below!

Melissa Benoist leads the series as the title character with a cast that also includes Mehcad Brooks as James Olsen, Laura Benanti as Alura Zor-El, Calista Flockhart as Cat Grant, Chyler Leigh as Alexandra "Alex" Danvers, Jeremy Jordan as Winslow "Winn" Schott, David Harewood as Hank Henshaw, Peter Facinelli as Maxwell Lord, and, in mystery roles, Dean Cain and Helen Slater.

SUPERGIRL is an action-adventure drama based on the DC Comics character Kara Zor-El, Superman's (Kal-El) cousin who, after 12 years of keeping her powers a secret on Earth, decides to finally embrace her superhuman abilities and be the hero she was always meant to be. Twelve-year-old Kara escaped the doomed planet Krypton with her parents' help at the same time as the infant Kal-El. Protected and raised on Earth by her foster family, the Danvers, Kara grew up in the shadow of her foster sister, Alex, and learned to conceal the phenomenal powers she shares with her famous cousin in order to keep her identity a secret. Years later at 24, Kara lives in National City assisting media mogul and fierce taskmaster Cat Grant. 

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