Kazuo Tengan's motives for masterminding the Final Killing Game are revealed as Ryota Mitarai decides to put an end to despair, but by forcing all of humanity to unwillingly believe in hope. Makoto Naegi and the other survivors go stop him, but fighting against the Ultimate Animator is not as easy as one might think.
In a flashback, Kazuo Tengan is shown sitting in a tent at a Future Foundation base camp when Chisa Yukizome arrives with a flash drive containing the video that caused The Tragedy. Explaining that it was created with techniques used by Ryota Mitarai, Chisa suggests searching for her former student in hopes of using his talent to create hope instead of despair. Kazuo asks Chisa if she has watched the video herself; when she denies doing so, he takes the flash drive from her, along with a second device containing the video used to drive the Reserve Course of Hope's Peak Academy to commit suicide en masse. With her superior occupied by examining the flash drives, Chisa reveals her spiral eyes.
After the opening titles, the episode resumes where the previous one left off: with Mitarai receiving a text message from Kazuo. As Aoi Asahina wonders how a dead person can send text messages, Ryota's phone downloads a file, revealed as a prerecorded video made by Kazuo. He explains that "hope" is something that old men like himself entrust to the next generation, as he tried to do by recruiting former students of Hope's Peak Academy into the Future Foundation. He praises them for becoming staunch pillars of hope in the fight against The Tragedy and its instigators, admitting that seeing them succumb to madness and paranoia to kill each other would be the greatest despair he could think of - thus, he set about to do just that.
As the video ends, Aoi and Makoto are left in stunned silence; Ryota, on the other hand, collapses on the floor, unable to comprehend the possibility that Kazuo himself was behind the recent killings. Aoi points out that the Final Killing Game is over, while Makoto suggests finding the exit to the facility, but Ryota slowly gets to his feet, announcing that he won't run away like he did when Junko tricked him into helping her throw the world into despair. Declaring that "I won't let this ever happen again," he tells Makoto and Aoi everything about his unwitting role in starting The Tragedy.
Aoi is surprised by the mention of a "Despair Video"; Ryota describes it as a way to "rewire" the viewer's brain, giving them Junko's obsessive love for despair. He had suspected that the Remnants of Despair that Makoto brought into the Neo World Program had been brainwashed by that very video; knowing that it was his fault, he had been too afraid to tell anyone until now. He goes on to theorize that the "suicide video" used in the Final Killing Game was originally developed by Junko - using techniques she gained from analyzing his own work - and given to Kazuo by the Remnants of Despair. Aoi wonders why Kazuo would use the suicide video to kill his own friends; Ryota guesses that he must have watched the Despair Video at some point. He reiterates that his own mind is now made up; he will end The Tragedy here and now.
To Makoto and Aoi's surprise, Ryota reveals that he has perfected the animation he was developing before he met Junko; a video meant to bring hope to the viewer. He admits that he was never able to truly abandon anime, despite the knowledge that his own talent was what doomed the world; now, he has decided to use the Hope Video to reverse the despair gripping the world. Makoto realizes that Ryota intends to force the world to feel hope instead of despair, which the Ultimate Animator confirms. He admits that he was reluctant to use such drastic measures, but his experiences have shown him that humans are too weak to fight off despair of their own free will. Makoto denies this, stating that people can overcome despair by working together, but Ryota angrily retorts that the current state of the world is proof that they can't.
Grimly stating that not everyone can be as strong-willed as the Ultimate Hope, Ryota turns and begins walking down the hall, quickly followed by Aoi, who tries to talk him into thinking of another way. In response, Ryota apologizes to the former Ultimate Swimmer before pulling out a second phone and showing the Hope Video to Aoi, sending her into a trance as he orders her to "stop Makoto Naegi". Moments later, Makoto finds himself being restrained by Aoi; Ryota explains that his talent with anime allows him to manipulate people's very minds, but the NG Code on his Monokuma bangle had prevented him from using it until now. Tossing the bracelet aside and resolving to live without any further regrets, he continues down the hallway as Makoto futilely struggles against his brainwashed friend's hold.
Elsewhere, a group of Future Foundation soldiers breaks into the facility, quickly but cautiously scouring the place for survivors. They come upon Ryota, who the squad leader recognizes as a member of the 10th Branch. He asks what happened, but Ryota shows him his Hope Video, putting him under his control. He tells the soldier to broadcast the video to the rest of his men, and to stop anyone who comes looking for him by any means necessary, "for the sake of the world's hope". As the brainwashed soldier carries out the new orders, Ryota muses that all tragedy comes from the despair inherent in people's hearts; by "reprogramming" humanity with his video, he can free them of all suffering.
The newly-brainwashed soldiers swarm into the facility, with two of them finding Makoto still restrained by Aoi. Ignoring his pleas for help, they level their guns and prepare to fire, only to be knocked out by Kyosuke Munakata. He ties up the soldiers while Makoto explains the situation and asks him to help them stop Ryota's plan. Kyosuke muses on the irony of a plan to brainwash the world with hope being instigated by a Remnant of Despair, but Makoto theorizes that Kazuo wasn't corrupted after all - his real intent for the Final Killing Game may have been to push Ryota to the point where he would use the Hope Video. Remembering Kazuo's surprise when Ryota had arrived at his aborted hearing, Makoto suggests that the Final Killing Game wasn't even meant to include Ryota as a participant; after everyone was killed, it would likely be sent to the former Ultimate Animator afterwards as motivation. Furthermore, Makoto realizes, Kazuo's final message was meant for Ryota, not himself - entrusting "the hope of the world" to him was another push for the use of the Hope Video.
Kyosuke again comments on the irony of such a despair-inducing gambit being used to create hope; a hope created by forcibly erasing sadness and pain, which he equates to removing the world's humanity. As the brainwashing video spreads to the next wave of the Future Foundation's incoming reinforcements, Makoto asks Kyosuke if the facility has a large-scale broadcasting station Ryota could use. Kyosuke notes that the only available station is in another building, but further plans are put on hold when the trio hears a platoon of soldiers fast approaching. By the time they arrive, all they find are their knocked-out comrades; Makoto, Kyosuke, and Aoi have already fled.
Arriving at another corner blocked by soldiers, Kyosuke notes that it would be prudent to assume that the Future Foundation's entire military force has been brainwashed by now. He breaks cover to distract the troops, allowing Makoto and Aoi to continue onward. He ends up being chased into the fake meeting room, where he finds Chisa's corpse, still impaled by his original katana. Moments later, the soldiers outside the door find themselves being summarily knocked out by Kyosuke, now wielding a sword in each hand and with the bandages on his head removed. He takes a moment to give a final mental apology to Chisa, whose corpse now has his old bandages laid over its chest.
Elsewhere, as Ryota approaches his goal with the help of the brainwashed troops, Makoto and Aoi run past yet another pair of soldiers who immediately open fire. Makoto gets through unscathed, but Aoi takes a bullet to the ankle, causing her to fall. Even as Makoto binds the wound, she tells him to go on ahead, assuring him that she'll be fine until he can stop Ryota and bring back help. The moment Makoto leaves, however, she collapses in pain, with more soldiers closing in on her.
Outside at last, Makoto runs toward the broadcast tower, thinking that he'll never give up until the very end. His thoughts are mirrored by Ryota himself, who has finally reached the broadcast station. As he uploads his Hope Video, he resolves to never give up again, vowing to create a world free of despair. Mentally announcing that he's done running, he completes the upload, initiating a 30-minute countdown as his video begins broadcasting worldwide. As people across the world (including Toko, Komaru, and even a space-bound Monaca) begin watching the video and soldiers corner Makoto, Aoi, and Kyosuke, Ryota smiles, believing that a world filled with hope is less than half an hour away...
These events are observed from a movie theater occupied by Chisa and Junko, the latter of whom introduces a segment called "What the Housekeeper Saw"; a recap of how Chisa influenced events leading up to this point. Junko gleefully announces the end of the Future Foundation; their leadership is dead through the machinations of their own president, their headquarters is destroyed, and one of their few surviving Branch Heads is about to destroy the free will of humankind in a last-ditch effort to eradicate despair, all thanks to the former Ultimate Housekeeper. Junko expresses disappointment that this is the end, but Chisa disagrees; revealing that her eyes are free of brainwashing spirals, she states that "this is where hope begins." Junko appears briefly surprised, but shrugs it off, saying that "we're already dead, anyways!"
After the credits, Yasuhiro Hagakure dramatically arrives to save Makoto, only to end up at gunpoint himself. Moments later, Byakuya Togami arrives, sending his bodyguards to knock out the brainwashed soldiers before wryly mocking Makoto's "luck". Elsewhere, a silhouetted figure is shown walking towards a light, leaving dozens of unconscious soldiers in his wake.
The episode ends with the message, "Continued on the hope side."
The following are in order of appearance
- Kazuo Tengan (Flashback)
- Chisa Yukizome
- Ryota Mitarai
- Makoto Naegi
- Aoi Asahina
- Daisaku Bandai (Flashback)
- Great Gozu (Flashback)
- Seiko Kimura (Flashback)
- Sonosuke Izayoi (Flashback)
- Ruruka Ando (Flashback)
- Juzo Sakakura (Flashback)
- Kyoko Kirigiri (Flashback)
- Nagito Komaeda (Flashback)
- Peko Pekoyama (Flashback)
- Fuyuhiko Kuzuryu (Flashback)
- Mahiru Koizumi (Flashback)
- Hiyoko Saionji (Flashback)
- Mikan Tsumiki (Flashback)
- Ibuki Mioda (Flashback)
- Nekomaru Nidai (Flashback)
- Akane Owari (Flashback)
- Kazuichi Soda (Flashback)
- Sonia Nevermind (Flashback)
- Gundham Tanaka (Flashback)
- Teruteru Hanamura (Flashback)
- Ultimate Imposter (Flashback)
- Karen Kisaragi (Flashback)
- Sōshun Murasame (Flashback)
- Kyosuke Munakata
- Komaru Naegi
- Toko Fukawa
- Monaca Towa
- Junko Enoshima
- Yasuhiro Hagakure
- Byakuya Togami
- Hajime Hinata/Izuru Kamukura