The ultimate battle begins! In the final episode of this winter season of the smash hit TV show Supergirl, Kara goes toe-to-toe with Astra when her aunt challenges Kara’s beliefs about her mother. Also, Cat is threatened with being removed as the CEO of CatCo after a hacker exposes her private and damaging emails.
Supergirl, Monday, Dec. 14 at 8/7c. Only CBS