With just a month to go until Supergirl returns, The CW has released a batch of promo images for its season 4 premiere ‘American Alien’, which includes our first look at Rhona Mitra as Mercy Graves; check them out here…
SEE ALSO: Watch the trailer for Supergirl Season 4 here
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 season 4 premieres on October 14th on The CW.
