The penultimate episode saw the return of Reign and a couple of call back lines to Superman II<br /><br />Supergirl learns the true depth of Serena's nefarious plans for Earth. Supergirl, Mon-El and Alura must devise a plan to stop her before Serena gets to Earth. J'onn prepares to say goodbye to his father.<br /><br />Director: Armen V. Kevorkian<br /><br />Writers: Jerry Siegel (based on characters created by), Joe Shuster <br />(based on characters created by) | 8 more credits »<br /><br />Stars: Melissa Benoist, Mehcad Brooks, Chyler Leigh<br /><br />Supergirl Warner Bros. Television Entertainment<br /><br />TM & © 2018 Warner Bros. Entertainment Inc. All rights reserved.<br /><br />Superman II 1980 DC Comic Time Warner Warner Bros All rights reserved 2018 TM & ©
