The network premiere of Supergirl was super-powered for The CW, giving the network its most-watched (3.024M) show in its Monday 8:00-9:00pm time period in almost eight years (Gossip Girl on 12/1/08), its best adults 18-49 (1.1/4) rating in nearly six years (90210 on 12/6/10), and its highest adults 18-34 (0.9/4) rating in five years (Gossip Girl on 11/21/11), according to preliminary fast affiliate ratings from Nielsen Media Research for October 10, 2016. The series starring Melissa Benoist moved to The CW this season after its first year on CBS. The show did have an unprecedented crossover with The CW's The Flash on CBS last year, before moving over to the network.

Supergirl was The CW's highest rated show ever in its time period among men 18-49 (1.2/4). Compared to the same week last season (10/12/15, series premiere of Crazy Ex-Girlfriend), Supergirl more than tripled the network's performance in total viewers and all key demos. Versus last season's time period averages, Supergirl was +246% in total viewers, +200% in adults 18-34, and +267% in adults 18-49. Compared to last season's season finale on CBS, the Supergirl Season 2 premiere rose +29% in adults 18-34.

Supergirl ranked #3 in its time period in men 18-34 (0.9/4) and #3 (tie) in men 18-49, and #4 in adults 18-34 and adults 18-49 (tie). 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.

Related: Crisis on Infinite Earths Is the 2019 Arrowverse Crossover

Now, in The CW's Supergirl Season Two, Kara has left the safety of being Cat Grant's assistant in order to figure out what she really wants to do, while as Supergirl she continues to work at the DEO, protecting the citizens of National City and searching for Jeremiah and Cadmus. Along the way, she will team up with Superman (Tyler Hoechlin) to battle new villains, as she strives to balance her personal life with her life as a superhero.

New additions to the show include Lynda Carter, the original Wonder Woman, as the President of the United States. Floriana Lima has also signed on to play Maggie Sawyer, the first ever openly gay comic book character, with the show also introducing her girlfriend Kate Kane (Batwoman), and Barbara Gordon (Oracle). We also have a new trailer for next week's episode of Supergirl, The Last Children of Krypton, airing Monday, October 17 at 8 PM ET on The CW. Take a look at this new footage below as Supergirl takes off on The CW Network.