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"The House of L"

LEX LUTHOR CONTINUES TO WREAK HAVOC — In the wake of Lex Luthor’s (guest star Jon Cryer) return, the show flashes back to what he’s been doing for the last two years and how his secret machinations and plans have affected Supergirl (Melissa Benoist) and Lena (Katie McGrath). Carl Seaton directed the episode written by Dana Horgan & Eric Carrasco (#416). Original airdate 3/24/2019.