The episode begins with two of Rave's employees driving to the park, where The Avalon is being set to trap The Kumuzilla.
Rave proceeds to drop Undyne and Ronan off slightly further back and tells Ronan to be more careful this time, to which he casually agrees. As Rave closes the door and drives away, he begins to have flashback of his brother, Noah, and his death.
A young Rave is in a vehicle with Noah. Rave complains about how their mother, Grace Rutrow, doesn't talk to him anymore, despite only seeing him occasionally. This leads to Noah to recount everything Rave had done to anger her on purpose. However, despite all those things, Noah believes the larger reason Grace is mad at Rave is because of how much he could do if he put forth more effort, but he showed no interest in doing so. Noah continues by saying recently, Rave has insisted on coming to his meetings, despite finding it hard to be around people. Noah then tells him that he'll talk with their mom next time, reassuring them that she'll be proud of him as well.
However, a truck suddenly crashes into their vehicle, sending it over the edge of the cliff they were driving along. When Rave wakes up from the wreck, he watches in horror as his brother dies in front of him. Later, when Grace arrives, she lashes out at Rave, angered that Noah died instead of him.
Rave then snaps out of his flashback as a Kindness wizard alerts him of them reaching The Avalon's location. As The Kumuzilla nears the area, Ronan clears a path for Undyne to attack it. As she prepares an attack from a rooftop, The Avalon is activated, trapping the creature within it. Undyne then summons a Spear of Justice, throwing it into an opening in the shield. The blast inside clouds her vision, so she’s unable to brace for The Kumuzilla retaliating by slicing her with a tentacle. She’s propelled off the roof and into the side of a nearby building.
Ronan, concerned, is ordered by Rave to help Undyne. However, when he attempts to jump up the building, he notices more blobs approaching him and is forced to fight back. Undyne, bloody and beaten in the side of the building, attempts to get back up, knowing that everything is counting on her to succeed. With one last thought of Alphys, she musters up all her Determination, screaming as she transforms into her True Hero form. She quickly notices Ronan failing to defend against the blobs, and launches a large yellow spear, which bounces around the street and kills all the threats.
Meanwhile, The Avalon containing the Kumuzilla begins to weaken, as the Kindness wizards become more drained. The Kumuzilla is able to break a hole in the shield, letting several smaller blobs out. The Kindness wizards watch fearfully, but Rave protects them, firing at the blobs with his magical gun. He then tells the Kindness wizards to keep any other blobs away from him as he powers the Avalon alone.
As Ronan alerts Rave that Undyne is up again, she leaps to the top of another building. Ronan watches in awe as she summons a massive Spear of Justice, and sends it straight into The Avalon, effectively vaporizing The Kumuzilla. However, the massive blast causes The Avalon to quickly drain all of Rave's magic, knocking him unconscious. Ronan catches Undyne as she plummets towards the ground, as the Kindness wizards desperately attempt to save Rave.
Rave wakes up in the afterlife, and Noah notices him, surprised to see him. He desperately tries to reach Noah, but a barrier separates them. Rave demands that he let him pass, but he replies that he won't be able to come back to life if he comes over. Rave says that he misses him, but Noah assures him that the city needs him more. As Rave begins to cry, he leaves the afterlife and is brought back to life. As the Kindness wizard saving him scolds him slightly for his recklessness, he states that it is his responsibility, as the leader, to protect others.
Chara battles against Asriel across city rooftops, and eventually confronts him with the heart locket. Asriel, expressing slight confusion over the existence of the second locket, is quickly overtaken by HATE. Possessed once again, he charges at Chara with his blade. However, Asriel fights against HATE's control and is able to prevent Chara from being killed. He’s unable to resist for long, however, and Chara is forced to battle his brother. Soon, Asriel begins using large attacks on his brother, angered at everything Chara had done to him that led to him becoming Flowey.
However, when Chara apologizes for his actions, it reaches Asriel and he fights against the control of HATE once more. Asriel tells Chara that he has to kill him to finish the HATE inside of him for good. HATE then lashes out at Chara and pierces his soul, linking the brothers' minds.
In a physical representation of Asriel's mind, Chara meets Flowey. Flowey attempts to convince Chara to kill him and stop the HATE from consuming them entirely, but he refuses and explains how Asriel had shown him before what hope could do. Chara then proceeds to let HATE into his soul, as Flowey watches, terrified. Overwhelming HATE with his will, Chara is able to tame the substance as it enters him. It leaves Asriel and the two brothers rejoice, crying as they embrace each other.
Toriel, fleeing from Asgore's body and being chased by Betty’s illusions, is very nearly killed before Gaster intervenes. This causes Bete to flee the arena. Gaster looks at a badly injured Asgore, stating to Toriel that she can do more for him than he can. He then leaves to confront Bete Noire. As Bete attempts to flee through the streets, she is attacked by Sans and Papyrus. Gaster quickly reaches her and notices his sons. As they happily reunite, Bete attempts to attack Papyrus, but fails to damage any of the skeletons as she is hit back even harder. Quickly realizing the severity of her odds, she attempts to retreat by distracting the skeletons with a blown up a building. However, Papyrus chases her down and is able to stop her long enough for Sans and Gaster to catch up. As Bete attempts to defend herself from their blows, HATE almost takes over and she is forced to use its power to save herself from Gaster’s and Sans’ blasters.
As the reflected blasts cloud the vision of the two older skeletons, Bete is able to grab Papyrus, using him as a hostage. She begins to crush him with her giant pink hand, but is quickly blasted away by Sans. As Gaster begins to heal Papyrus, Sans angrily uses his special attack, Gaster Blastermination, intending to finish Bete. However, Bete successfully performs Rhabdophobia, stealing Sans' attack and firing it at him. Gaster manages to successfully encase Sans in a Kindness shield with his two Duality hands, protecting him from the blasts.
Soon after the blasting stops, the hands break and Gaster falls unconscious. As Papyrus rushes towards him, Bete aims Sans' attack at the two. Just as Papyrus is about to defend, Sans teleports in front of him, summoning a second Blastermination attack. The two forces clash, as Sans begins to melt from the Determination. He successfully counters Bete and sends her into a building. Sans then turns to dust in front of his family, and his soul shatters.
Papyrus collapses to his knees and begins to cry, as Gaster begins to remember all of his efforts to save Sans, and how it was all pointless in the end. Gaster then snaps entirely, just as Bete launches an explosive projectile at Papyrus. Shielding him with a Kindness Chroma hand, Gaster proceeds to subconsciously reverse the link between himself and his son, sending the magic formerly flowing into Papyrus back into himself. Gaster then challenges Bete, prompting her to attack him, as he quickly begins to counter all of her assaults.
Gaster, seemingly expecting more from Bete, observes her weakened state, and prepares to activate his ultimate attack: Polychromatism. With a roar, he summons a massive Gaster Blaster, two Duality hands, and seven small hands. He quickly rips Bete’s legs off and starts to vaporize her with Determination beams. However, before Gaster is able to finish her corpse completely, Papyrus selflessly cries out to him when he feels his father’s soul begin to crack. Gaster, realizing that continuing would drain his son of too much magic to survive, drops the beams and leaves Bete's body as a husk.
The link then returns to normal, and part of Gaster's magic once again begins to flow into Papyrus. Gaster then falls unconscious, and Papyrus catches him as he drops to the ground. However, soon after noticing the remains of Bete crumbling away, Papyrus comments that he feels something is wrong, and attempts to leave.
Due to not being entirely vaporized, Bete's corpse is consumed by HATE. As the being awakens, it creates a dome that casts an illusion on Papyrus, making him think that Gaster has died in his arms. Papyrus, paralyzed in both grief and fear, can’t move as HATE raises a blade to kill him. However, Chara is able to jump in the way and take the blow. Asriel arrives behind him, as Papyrus notices Gaster still alive in his arms. Chara then challenges HATE to a final battle in the city.
Written by deleted on Jul 28, 2022