Appa summons the Green Lanterns together on Oa and informs them that Aya and her Manhunters have gathered above the planet Malthus. She plans to travel to the moment of creation and remake reality as a new universe devoid of organic life. The Guardian warns that Aya has absorbed the power of dozens of star systems and their own energy is no match, but they will fight to death. The Council wishes the Green Lantern Corps luck and godspeed.
Hal turns away from the announcement and then charts the path of destruction that Aya has left. Tomar-Re flies in and assures Hal that it's not his fault for cultivating Aya's independence. Hal isn't so sure, pointing out that he stole the interceptor and released Aya, and now he may have to kill his former friend. As they study the map, Tomar-Re notes that Aya's path of destruction involves empty planets. He goes back to deploy but Hal says that there's something he needs to check. As the remaining Lanterns leave for Malthus, Hal overlays a map of uninhabited systems on top of Aya's course
At Malthus, Aya and her Manhunters land on the orbital platform and turn to face the Lanterns as they arrive. She sends the Manhunters to hold them off so she can finish their task, and Kilowog and Razer take the lead in the assault. The Lanterns destroy hundreds but more Manhunters reinforcements arrive. Hal flies up and tells Salaak that he has to call off the assault. Salaak refuses, pointing out that Aya is within moments of powering up the time displacement generator. Hal flies in on his own and Guy and Kilowog fly in after him, providing cover.
Hal flies up to Aya and tells her that he knows her secret: that she only fed on lifeless planets. He figures that she couldn't vaporize living beings because she's a killer. Aya freezes him in a stasis field and says that in thanks for freeing her, she will take him with her so that he will be the last being in the universe that she destroys. She imprisons him within the generator and then activates the time displacement unit, creating a portal. As Aya prepares to pass through the portal, Hal contacts Kilowog and tells him to send in Razer. He then flies through the portal where a vast unknown hand grasps the universe.
Kilowog passes on Hal's orders to Guy, who is skeptical of the plan. They figure that Razer is the only one with a ring that affects green constructs, and hope that he can shut Aya down.
Hal approaches Aya, who wonders why he doesn't attack her. He points out that it wouldn't have worked and notes the empty void surrounding them. Aya tells him that she is improving creation by eliminating the creating the creation of biological units. She will then feel the universe with unemotional mechanical beings, creating a perfect universe.
Guy and Kilowog create a cannon and prepare to fire Razer in. Kilowog asks if Razer can do what he has to do, and the Red Lantern assures him that he'll do what he needs to. Kilowog aims and fires the cannon and Razer penetrates the Anti-Monitor's body.
Hal tries to convince Aya that she's not a killer and that she has empathy for living beings. She argues that she plans to help life by preventing suffering, and Hal shows her the recording he made of the Science Director's explanation of how she used the living entity from the power battery to create Aya. Aya dismisses it as faulty information, but Hal insists that she's one of them.
Razer wakes up inside the generator and enters the portal.
Hal warns Aya that she can't destroy life without destroying herself, but she blasts him back and insists that ending her own existence is acceptable if it eliminates emotion and pain. Razer watches as the hand closes, and then creates a dagger construct with his power ring. He flies toward Aya, who wonders what emotion Hal is feeling. He tells her "regret" as he sees Razer approach, but Razer is unable to kill his former lover. Aya blasts him back and then stares in shock, wondering what she's done. Hal tells her that she has emotions and can make flawed decisions just like the rest of them.
Aya flies to Razer, calling him "my love," and holds him in her arms. Hal points out that the hand is closing, changing the universe, and Aya flies back to try and undo what she's done. She succeeds and then grabs Hal and Razer and flies back through the portal. The time displacement unit blows up and Aya uses all of the power she's absorbed to heal Razer's body. He tells her that he will be fine now that she's come back to him, and Aya wonders why he didn't strike her. Razer explains that his constructs are based on hate, and he had no hate for her in his heart.
Kilowog contacts Hal, who tells him that Aya is back on their side. However, the Manhunters are still attacking them. Aya explains that she uploaded copies of her program into the Manhunter bodies, and they no longer recognize her as one of them. Any one of them could find a way to destroy the universe, and shows Hal and Razer a computer virus that will seek out all copies of her program... including herself. Razer begs her not to destroy herself, but Aya tells him that it is too late. The virus spreads out, shutting down all of the Manhunters.
Aya shuts down as well and Razer holds her, begging her not to leave him alone. She tells him that he has a family now and will somehow be with him, watching over him. When Razer says that he doesn't understand, Aya admits that she doesn't either, but she has a feeling. Her body dissipates into energy and fades away.
Later on Oa, Hal and Kilowog come to get Razer for the recognition ceremony. He says that he's leaving, insisting that Aya isn't dead. Razer is confident that she would have found a way to keep herself from being deleted. He vows to scour the universe to find her, and Hal and Kilowog offer to go with him. Razer thanks them but says that they would only slow him down. Hal promises to be there for him if he needs help and Razer says that he knows they will save him... and that they already have. Kilowog hugs him and then Razer flies off... and a blue ring of hope follows him.