Of all the Arrowverse series to face radical changes following "Crisis on Infinite Earths," perhaps none have had a more visible impact than Supergirl.
With Earth-38 now part of Earth-Prime, the resurrected Lex Luthor has repositioned himself as one of the reborn world's biggest defenders, including working directly with the D.E.O. In a new clip series' most recent episode, "Back from the Future," Luthor quickly proves to Kara Danvers that he has a decided edge over the Girl of Steel.
As Kara turns a routine interview with Lex into a full-on exposé to uncover his villainous agenda, he taunts her with the reminder that he knows her secret identity following the events of "Crisis," much to her frustration.
With Lex now a beloved public figure and the head of LexCorp once again, Kara's worst nightmares about her greatest nemesis have come true. Plus, with Leviathan still on the loose and posing a threat to National City, the odds are stacked against Supergirl more than ever.
Airing Sundays at 9 p.m. ET/PT on The CW, Supergirl stars Melissa Benoist as Kara Danvers, David Harewood as Martian Manhunter and Chyler Leigh as Alex Danvers.