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.

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.

Lena and James are attacked by Reign at Lena’s place. Lena uses Kryptonite against Reign which forces Reign to retreat.

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.

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 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

In Supergirl S03E14, Supergirl’s friend, Winn, have to face with his death father and co-operate with his estranged mother to fight back to Toyman.