When Reign goes on the hunt for Ruby Alex searches out the hiding place where Lena has sent the young girl, while Supergirl and J’onn pay a visit to Sam’s mother to try and protect her. The Legion prepares to depart Earth.

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REIGN SETS HER SIGHTS ON RUBY

When Reign (Odette Annable) starts hunting Ruby (guest star Emma Tremblay), Supergirl (Melissa Benoist) and Alex (Chyler Leigh) work together to keep her safe. Supergirl and J'onn (David Harewood) look to Sam's mother (guest star Betty Buckley) for advice on how to stop Reign and come away with some shocking news.

Antonio Negret directed the episode with story by Robert Rovner and teleplay by Lindsay Gelfand & Allison Weintraub (#318).