Supergirl cures Sam of Reign with an injection created by Lena from the Harun-el that was brought from Argo. <br /><br />SUPERGIRL 3x21 - Supergirl Rids Sam of Reign with Lenas Help (Not Kansas 3x21)<br /><br />Supergirl 2018 clip courtesy of The CW and Warner Bros Television. <br />All rights reserved for Warner Bros Television Entertainment 2018<br /><br />Kara makes a major life decision. Meanwhile, J'onn finds out that special DEO-caliber guns have hit the streets of National City.<br /><br />Director: Dermott Downs<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
