Supergirl S03E13, Lena is poisoned with cyanide in her coffee by an unknown hitman. James pursues the hitman, who is eventually shot down by an unseen sniper.
Lena brings Sam out of sedation and tells her that her blood tests are normal, but further analysis shows Sam undergoes a metamorphosis at the cellular level when she becomes Reign
The DEO investigates the rash of dead animals; it spreads to humans, as people develop flu-like symptoms with a large scratch on their wrists. Imra believes this is the work of Pestilence, the third Worldkiller.
Lena is questioned at the DEO and reveals that she contained Reign using the last of Lex’s Kryptonite. At the Fortress of Sanctuary, the Worldkillers work to bring about a total eclipse.
Kara and James discuss Lena’s mistrust of Supergirl and keeping secret identities. Tonya, a Coville follower, brings Coville’s personal journal for James to give to Supergirl.
Kara and Mon-El reach the meteor and discover there is a city on it. They are attacked by caretaker droids, but use disguises to blend in while traveling through the city towards the rock.
