Ridding National City of Queen Rhea and her Daxamite army was a major win for Supergirl, but one that came at a significant cost, as Kara was forced to sacrifice her budding relationship with Mon-El. As season three returns with all-new supercharged adventures, Kara and the team will come up against a new threat in the form of Worldkiller Reign.

After leaving her day job as Cat Grant's assistant at CatCo Worldwide Media to take stock of her life and plan her future, Kara Danvers continues to work with Hank Henshaw and her sister, Alex, at the Department of Extranormal Operations. There, she can be her true self -- Supergirl -- using her every-increasing powers to protect National City while searching for her missing father, Jeremiah, and the secret research lab, Project Cadmus. Along the...

In the sixth and final season, Supergirl is thrust into the greatest challenge of her life; forced to confront her own mortality, and the prospect of losing all hope. As her friends rally to help her in this difficult fight, a new villain arrives in National City and tests her resolve.

Supergirl, Superman's cousin, comes to Earth in search of a missing Krypton power source - a gem that's been made into a paperweight. She battles a mad villain and a jealous dark sorceress; the latter for both the orb and the affections of one man.

When a mysterious new high school pops up near their own school, the heroes are forced to put their training on hold to deal with a new set of emerging villains.