The CW Announces ‘Supergirl’ Final Season Premiere Date (TV News Roundup) Variety 3/5/2021 DATES March 30 at 9 p.m. In that time slot now is “ Superman and Lois,” which will go on a brief hiatus due to a COVID-related production interruption earlier this season when “Supergirl” begins. The recently-renewed “Superman and Lois” will return on May 18 at 9 p.m., with “Supergirl” slated to complete its final season later this summer. The action-adventure drama series follows the DC character Kara Zor-El ( Melissa Benoist), who balances her work as a reporter for CatCo Worldwide Media with her work as Supergirl, keeping National City and the Earth safe from sinister threats. The series also stars