A new series of photos from the upcoming Supergirl episode "Both Sides Now" depicts two Worldkillers uniting against the titular heroine. This follows the series' introduction of Purity, the second Worldkiller, in recent episodes.
The main storyline of Supergirl's third season has pitted Kara Zor-El against Reign - one of the living Kryptonian biological weapons called Worldkillers. Reign handily defeated Supergirl in the series' mid-season finale, with Supergirl recovering only thanks to the futuristic technology provided by The Legion of Super Heroes. Now, with the discovery of Purity, Supergirl will find her troubles doubled.
The CW released the photos, along with the following plot summary for the episode "Both Sides Now."
The DEO captures a second Worldkiller, Purity. Supergirl and Alex use very different methods of interrogation with Purity in the hopes of finding out how to defeat Reign. However, Purity escapes and attacks the city’s subway tunnels. Meanwhile, J'onn, Winn and Mon-El band together to fix The Legion ship.
[vn_gallery name="Supergirl ‘Both Sides Now’ Photos" id="1171427"]
The Worldkillers first appeared in DC Comics New 52 Supergirl series and were co-created by American Gods producer Michael Green and writer Mike Johnson. Created by a team of scientists overseen by Supergirl's father, Zor-El, The Worldkillers were biological weapons formed by genetically altering the embryos of alien species, creating creatures capable of single-handedly destroying whole planets. Horrified by Zor-El's work, The Kryptonian Science Council outlawed the creation of further Worldkillers and demanded that Zor-El destroy all the Worldkillers he had created so far. Though Zor-El apparently regretted his work on The Worldkiller project, he could not bring himself to kill his "children" and elected to hide them away instead.
Five of the Worldkillers survived the destruction of Krypton. Four of them banded together, searching the universe for meaning, knowing only the names they were given, their origins as products of Kryptonian science and their purpose as world-killing living weapons. Their leader, designated Reign, had an encounter with Supergirl in the ruins the ruins of Argo City, which had remained intact following Krypton's destruction thanks to a force-field built by Zor-El. After determining that Supergirl knew nothing about The Worldkillers' origins but that answers might lie on Earth, Reign left to retrieve the rest of her party to launch an invasion of Earth. Supergirl was able to repel the Worldkillers and forced them to retreat, with Reign swearing that she would fight Supergirl again someday. Reign has not been seen in the comics since, though Supergirl did later fight and defeat the fifth Worldkiller.
The Supergirl television series has developed the Worldkiller concept beyond its brief use in the Supergirl comics. Retconning The Worldkillers as being the creations of an ancient Kryptonian cult, the series has also developed Reign into a more well-developed character. Reign is now a split personality of Samantha Arias - a single mother who befriended Kara Danvers, Alex Danvers and Lena Luthor. Samantha has no knowledge of her other identity and has only recently begun to notice missing time as Reign takes over more and more of her days. It remains to be seen just how Reign and the new Worldkiller Purity will come to know each other and what powers Purity may have that Reign does not.
Supergirl continues next Monday night, February 5, with ‘”Both Sides Now” on The CW.
Source: The CW