Supergirl is going to have her hands full this season with a pair of new human baddies that may arguably be more dangerous than any of the aliens she's faced in seasons past: Agent Liberty (Sam Witwer) and Mercy Graves (Rhona Mitra). The pair will have a very anti-alien agenda throughout the coming year and are looking to use fear to divide the country and turn it against Kara (Melissa Benoist) and the people she's sworn to protect, human and alien alike.
There's also a Kara doppelgänger still-at-large and while the series has chosen to keep her costume under lock-and-key for now, it shouldn't be too long before we catch a glimpse at the potential real big bad of season four.
"American Alien" - (8:00-9:00 p.m. ET) (TV-PG, V) (HDTV)
HOPE VS. FEAR - Diving back into reporting, Kara (Melissa Benoist) welcomes a new cub reporter to CatCo. Meanwhile, James (Mehcad Brooks) and Lena (Katie McGrath) argue about James' impending indictment for acting as the vigilante Guardian, while Alex (Chyler Leigh) and Brainy (Jesse Rath) struggle to get in sync at the DEO. Supergirl (Melissa Benoist) is called into action when remnants of the anti-alien terrorist organization Cadmus try to assassinate pro-alien leaders, but their endgame turns out to be much more sinister than she expected. J'onn (David Harewood) relishes his peaceful new life, but an outing with an old friend causes him concern. Jesse Warn directed the episode with story by Robert Rovner & Jessica Queller and teleplay by Gabriel Llanas & Aadrita Mukerji (#401). Original airdate 10/14/2018
Check out photos from the season premiere below!
To view every photo at once, simply click on the VIEW LIST (ONE PAGE) button!
Supergirl -- "American Alien" -- Image Number: SPG401a_0063b.jpg -- Pictured: Katie McGrath as Lena Luther -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0068b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl, Katie McGrath as Lena Luther and Mehcad Brooks as James Olsen/Guardian -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0118b.jpg -- Pictured (L-R): Mehcad Brooks as James Olsen/Guardian and Katie McGrath as Lena Luther -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0251b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0304b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Jaymee Mak as Mackenzie -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0320b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Jaymee Mak as Mackenzie -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0383b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0405b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0450b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0470b.jpg -- Pictured: Nicole Maines as Nia Nal -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_BTS_0590b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl and Nicole Maines as Nia Nal -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0024b.jpg -- Pictured (L-R): Rhona Mitra as Mercy Graves and Robert Baker as Otis Graves -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0101b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0153b.jpg -- Pictured: Robert Baker as Otis Graves -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0217b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0259b.jpg -- Pictured: Vincent Gale as Dr. Rohan Vose and David Harewood as Hank Henshaw/J'onn J'onzz -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0231b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Season three saw Supergirl stop Reign and the other Worldkillers’ threat to humanity and our planet, and in the process, Kara was shocked to find her mother Alura alive and living in a salvaged Argo City that survived the destruction of Krypton. Reconnecting with her past caused Kara to realize that her true home is now here on Earth, where big changes are taking place for her and all of her friends in National City – and also, it appears, for a doppelganger in Russia! Season four promises to be full of surprises, action, adventure and lots of big revelations for Supergirl, Alex, James, J’onn, Lena and Brainy.
Supergirl features:
Melissa Benoist as Kara Zor-El/Supergirl
Mehcad Brooks as James 'Jimmy' Olsen/Guardian
Chyler Leigh as Alexandra 'Alex' Danvers
Jeremy Jordan as Winslow 'Winn' Schott
David Harewood as J'onn J'onzz/Martian Manhunter
Katie McGrath as Lena Luthor
Jesse Rath as Querl Dox/Brainiac 5
Sam Witwer as Agent Liberty
Nicole Maines as Nia Nal/Dreamer
April Parker Jones as Colonel Haley
David Ajala as Manchester Black
Rhona Mitra as Mercy Graves
Robert Baker as Otis Graves
Erica Durance as Alura Zor-El
Supergirl returns with a brand new episode on October 14