The penultimate episode saw the return of Reign and a couple of call back lines to Superman II
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.
Director: Armen V. Kevorkian
Writers: Jerry Siegel (based on characters created by), Joe Shuster (based on characters created by) | 8 more credits »
