Watch these featurettes and reviews to dive deeper into the final season's themes and behind-the-scenes moments:

The main antagonist is Nyxly , a 5th-dimensional imp seeking to assemble the AllStone by collecting seven magical totems (Courage, Humanity, Hope, etc.). The "Super Friends" must race to find these totems first to prevent her from gaining absolute power.

The season begins with Supergirl sacrificing herself to stop Lex Luthor, resulting in her being sent to the Phantom Zone . This arc forces her to confront her own mortality and fear.

Familiar faces like Mon-El , Winn Schott , and James Olsen return to help defeat the combined threat of Lex Luthor and Nyxly. The villains are ultimately dragged into the Phantom Zone by their own victims' fear.

The show ends on a joyful note with the wedding of Alex Danvers and Kelly Olsen . Main Cast Melissa Benoist Kara Danvers / Supergirl Chyler Leigh Alex Danvers (Sentinel) Katie McGrath Lena Luthor David Harewood J'onn J'onzz (Martian Manhunter) Nicole Maines Nia Nal (Dreamer) Jesse Rath Querl Dox (Brainiac 5) Azie Tesfai Kelly Olsen (Guardian) Peta Sergeant Nyxly (Season Villain) Jon Cryer Lex Luthor

The series concludes with a two-part finale, "The Last Gauntlet" and "Kara".

Encouraged by a returning Cat Grant , Kara decides to end her double life by revealing her identity as Supergirl to the world. This allows her to fully embrace her power and accept the role of Editor-in-Chief at CatCo.