VIDEO: First Look - SUPERGIRL Returns to The CW for Season Three

VIDEO: First Look - SUPERGIRL Returns to The CW for Season Three

Melissa Benoist returns as SUPERGIRL for a third season of the hit series premiering Monday, October 9, at 8/7c on The CW. Check out a just-released trailer below!

Melissa Benoist leads the cast of SUPERGIRL as the title character alongside 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, Jenna Dewan Tatum as Lucy Lane (sister of Lois), David Harewood as Hank Henshaw, Peter Facinelli as Maxwell Lord, with Dean Cain and Helen Slater.

SUPERGIRL is based on the DC character Kara Zor-El, Superman's 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. Kara lives in National City assisting media mogul Cat Grant. However, Kara's days of keeping her talents a secret are over when Hank Henshaw, head of a super-secret agency, enlists her to help protect the citizens of National City from sinister threats.

VIDEO: First Look - SUPERGIRL Returns to The CW for Season Three