After all but completely corrupting Frisk and guiding them on a genocidal path through the Underground, Chara sets their sights on Sans.
After resetting the timeline following the Battle of Waterfall, Sans enters his workshop, opens a drawer, and pulls out a poorly drawn picture of him, W. D. Gaster, and a blotted out figure. At the corner of the picture is a taped-on message that reads, "don't forget". Sans tells himself that he would never forget his dad, referring to Gaster, and that he will find a way to bring him back from the Void without killing anyone.
W. D. Gaster seeks to undo his accidental death by stealing Frisk's soul.
Previous events have glitched the timeline enough for Chara to return as their own separate entity, allowing them to steal the essence of Frisk's Determination; Sans and Flowey must team up to stop them.
It's time for round two against Chara, and this time, Sans calls on an old friend to help him and Flowey with the fight.
The battle over the timelines will be determined by the battle between Chara and Asriel.
The monsters and Frisk still need to convince the ambassador of the Anti-Monsters Department to join their side, while a certain girl also appears much to Frisk's surprise.
Everything is going downhill as Asgore is placed into jail, Papyrus is tricked into following a human's command, and Gaster makes a startling discovery about one of the main cast's friends.
In light of the events featured previously, Frisk tries to stay determined. Gaster, on the other hand, intends to face the newest threat to their safety directly.
As Frisk faces off against Bête Noire, Asriel faces an important talk with Asgore after what happened previously before facing his old self and going out and helping Frisk. Additionally, Gaster feels anguish after he makes a shocking discovery about Jessica.
The situation gets dire for the main cast, and in light of it, Frisk starts making harsher, even crueler decisions as the main threat grows in power.
With tensions rising up and everyone growing desperate as friends are becoming wounded, Frisk decides to take drastic measures to save the timeline.
With Chara in the lead, Gaster tries more experiments to save Sans, Papyrus is starting to snap, and a new person emerges with an offer for Jessica. Things can't get worse, or can they?
Bête Noire has made her move to the city. As the army struggles to mount a defense against the onslaught of soul-eating blobs, Chara and company race to cut off the problem at its source. The final battle has begun.
It's a race against time to stop Bête Noire, and the stakes are rising slowly with every passing minute. But it's not over yet. As new and old clash, ideas are tested, and pasts are flung into the present... Not everyone is going to make it out alive.
The battles continue as Bête Noire, Asriel, and the giant blob continue to threaten every human and monster that they encounter. And in order to defeat these enemies, drastic actions must be taken.
The fighting finally draws to a close, though plenty of blood is shed as Hate refuses to go down easily.
Origin of Bête Noire.
Official written story by "Devour" one of the co-writers of the series. Featuring Kody, Mila and members of the Grey Phantoms.
The animation is a re-animated version of Megalomaniac, the first episode of Glitchtale. This animation was a gift for Camila, made for Glitchtale's second anniversary by Jakei and Super youmna.