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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.
The sixth and final season of concluded the adventures of Kara Zor-El with a 20-episode run that aired from March 30 to November 9, 2021. It serves as an emotional farewell that balances high-stakes cosmic battles with personal growth and social justice themes. Core Story Arcs Supergirl - Season 6
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 season begins with Supergirl sacrificing herself to
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. It serves as an emotional farewell that balances
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.