Supergirl Season 3 Episode 17
Still reeling after learning about Lena's secret, Supergirl asks Guardian for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the team brace for an epic battle.
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Air Date: 7 May 2018
Director: Caitlin Parrish
Language: English
Runtime: 43 Minutes
More Info: IMDb