Supergirl ‘Stranger Beside Me’ December 29, 2019 WCCB Charlotte, Tune in to The CW at 9 p.m. to see a rerun episode of Supergirl. Supergirl, Alex and Brainiac prevent an alien attack; William investigates Kara J’onn J’onzz; Kelly utilizes Obsidian tech to solve a problem. 1/3 2/3 3/3 FacebookTwitterPinterestLinkedin