Matt's Inside Line: Scoop on Supergirl, Arrow, Grey's, Manifest, #OneChicago, Star, Legends, Supernatural and More

Is Supergirl stirring a super rivalry? What surprising alliance will form on Manifest? Which #OneChicago character’s “punk” roots will be exposed? Are Arrow‘s Felicity and Diggle on the same page? Read on for answers to those questions plus teases from other shows! GET THE INSIDE LINE!