CW | 9:00 pm

While breakout freshman hit "Superman & Lois" takes a brief hiatus, this veteran superhero series launches its abbreviated sixth and final season with "Rebirth," which opens with Brainiac (Jesse Rath) lying near death after his attempt to stop Lex Luthor (Jon Cryer). Supergirl (Melissa Benoist) and her team swoop in to save him, though, igniting an epic battle with Gamenmae (guest star Cara Buono). After defeating Leviathan, Supergirl immediately shifts her attention to Lex, who has used the Obsidian platform to brainwash half the world into idolizing him.