The Supergirl series is one that will be remembered as beginning with an entertaining, if light, introductory season, before spiralling uncontrollably into overworked, overwrought, identity-driven episodes. And, like most CW shows, once the series migrated from NBC to the CW, it was yet another opportunity for a lead character to take a back seat to a team of lesser heroes loosely based on other DC Comics trademarks.
The sixth season opens with what would have been the final episodes of the fifth season, cut short for Covid precautions. Kara (Melissa Benoist) must face down a now god-level Lex Luthor (Jon Cryer), sacrificing herself to the Phantom Zone, where she remains for a few episodes until her friends get her out.