The latest Supergirl episode photos show that Kara will be making a new ally.
Supergirl episode 603, “Phantom Menaces,” will see Lena and Lex battling for control of Luthor Corp.
BATTLE OF WITS — Supergirl (Melissa Benoist) makes a new ally. Lena (Katie McGrath) and Lex (guest star Jon Cryer) battle for control of Luthor Corp
Supergirl episode 603 airs on April 13, 2021.
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