Supergirl S04E17 All About Eve

Supergirl 4x17 "All About Eve" Season 4 Episode 17 Promo - SUPERGIRL FACES HER BIGGEST CHALLENGE YET — Supergirl (Melissa Benoist) must deal with the destructive aftermath of Lex’s (guest star Jon Cryer) nefarious plans. Shocked at what Lex has created, Supergirl faces her biggest challenge yet. Ben Bray directed the episode with story by Gabriel Llanas and teleplay by Katie Rose Rogers & Brooke Pohl (#417). Original airdate 3/31/2019.