Supergirl finds her mother (Alura Zor-el) and is stunned to discover that a part of Krypton survived (Argo City). Meanwhile, Alex is attacked while out with Ruby, and Lena considers how far will she go to keep Reign contained.<br /><br />Writers: Jerry Siegel (based on characters created by), Joe Shuster (based on characters created by) |<br /><br />Stars: Melissa Benoist, Mehcad Brooks, Chyler Leigh
