Synopsis

Kara’s Thanksgiving plans could unravel with the impending arrival of her foster mother, Dr. Danvers, whose disapproval of Kara's burgeoning life as a superhero weighs heavily on her. Adding to this tension, a sudden accident transforms a disgruntled CatCo employee into the formidable villain known as Livewire, who then sets her sights on both Cat and Supergirl.