About Supergirl Season 2, Episode 19 : Alex

Alex is kidnapped and the kidnapper threatens to kill her unless Supergirl releases a notorious criminal from prison. Supergirl and Maggie have always had different approaches to apprehending criminals but this time they must work together to save Alex. Meanwhile, Rhea has an interesting proposal for Lena. Guest Stars: Katie McGrath, Teri Hatcher, David Hoflin, Gregg Henry, Zayne Emory, Malina Weissman, Jordana Taylor, Curtis Lum, Samori Joseph,