(The Desire Grand Prix Members, including some of Union's former students are seen in their new base, located in the underground of the Old Schnee Mansion.)
Isurugi: We need some countermeasures against Union. But which ones?
Sougo: (gets up) I know one. I'll return to the city to check the situation.
Isurugi: You're crazy?
Sougo: Sorry Isurugi, but I have to do this.
Mika: I'm going with you.
Sougo: (monotone) No, you're not. I'm doing it alone.
(Sougo runs away, leaving the team to ponder about what Sougo is hiding.)
(Some moments later, Sougo is seen walking into the streets of Union City as he holds a picture of his siblings and mother.)
Sougo: I miss you, mother. Same goes to you, Natsuo, Fuyumi. (stern) Dad can rot in hell for all I care.
(Suddenly he sees some assassins.)
Sougo: I got a bad feeling about this.
(He then follows them as he suddenly sees a familiar residence.)
Sougo: (eyes widen) My house.
(Sougo then decides to transform.)
DESIRE DRIVER!
Sougo: I won't let them kill my family.
SET!
Sougo: Henshin!
MAGNUM! READY, FIGHT!
(Sougo becomes Geats and engages the assassins.)
Geats: Now, here comes the highlight!
(Geats starts fighting the assassins, who are none other than Yor Briar, Talia Al Ghul, Akame (brainwashed), Gray Fullbuster (brainwashed) and Snipe.)
Yor: So you're Geats.
Geats: What do you want with Natsuo and Fuyumi?
Talia: We want them... dead! Nothing personal, of course.
(Akame and Grey are silent as Geats suddenly see Natsuo and Fuyumi getting out of their rooms.)
Geats: (turns to them) RUN!
(Akame charges at Sougo's siblings , but he blocks their attacks. Natsuo and Fuyumi realize they're targeted by the assassins and decide to run to safety while Geats distracts the assassins.)
Snipe: (to his fellows) Forget those two. We have a bigger fish to catch.
(They nod and leave as Geats thinks for a while.)
Geats: (in mind) Where are they going to attack next...
(Geats remembers that his mother is still in a hospital due to a certain incident.)
Geats: (eyes widen) MOM!
(He pulls out his Command Twin Buckle and activates it.)
COMMAND TWIN BUCKLE!
SET!
TWIN SET!
TAKE OFF COMPLETE! JET & CANNON! READY, FIGHT!
(Geats changes forms as he leaves. However Natsuo and Fuyumi overhead him saying the word "Mom".)
Natsuo: Geats is...
Fuyumi: Sougo-nii?
(At the hospital, Rei is seen being treated until the assassins come in.)
Snipe: Freeze, nobody move!
(Yor approaches Rei as she prepares to kill her, but suddenly she is blasted away as the assassins turn to see Geats.)
Geats: Leave her alone!
Talia: (grunts) Persistent!
(The assassins charge at Geats who tries his best to distract them as he turns to the doctors.)
Geats: Take her somewhere safe!
Doctors: (in unison) Hai!
(They take her to another room while Geats changes forms.)
REVOLVE ON!
Geats: I will fight... with all my strength!
(The Assassins combine their attacks, overwhelming Geats.)
Snipe: That was foolish of you... to fight us all without your friends.
Geats: Ugh... my family... my problem...
Talia: Enji was wiser than that.
Geats: Typical of him... he never cared about his own family. All he cared about is becoming the number one. That's why I left that disgusting hole you call an academy.
Yor: As much as I bear no grudge against you... I must kill you!
(As Geats starts feeling helpless, a giant fire fox starts attacking the assassins.)
(As he keeps attacking them, he knocks both Akame and Grey as he undoes the brainwashing enforced on them. He then turns into a buckle.)
(Geats picks it up as be removes the Command Twin Buckles and places the new one in his driver.)
SET!
(He prepares to change forms.)
BOOST MARKII! READY, FIGHT!
Geats: Now, here comes the highlight!
(He dashes and punches Talia away before uppercutting Yor and elbowing her back, slamming her down.)
REVOLVE ON!
(Geats transforms into the very fire fox who saved his life and shoves Snipe into a wall with a tail swag before attacking the three of the assassins as Akame and Grey wake up.)
Akame: Ugh... where am I?
Grey: What happened?
REVOLVE ON!
(Geats reverts back to his Boost Mark II form and prepares to finish the three assassins.)
BOOST STRIKE!
(Geats summons four projections of the Vermillion Puncher through a jabbing manner. With each projection fired at the assassins, he follows them by flying at high speed. Lastly, Geats performs a superman punch with the projections infused into his right arm to enhance its power upon contact to the assassins, creating a building-sized explosion, destroying the assassins. Suddenly Geats feels fatigued as he reverts back to Sougo. Akame and Grey are still confused about what happened, but then a double voice is heard.)
????: (double voice) Don't touch him!
(Natsuo and Fuyumi come in and carry Sougo's unconscious body to the very room their mother was taken. What none of them knew was that the battle was accidentally released online.)
(Meanwhile at Union Academy, the Headmasters and some Pro Heroes watch the video of Geats fighting the assassins and they have different reactions.)
Eraserhead: (in mind) I gotta warn the problem child about this!
Endeavor: (stern) So that ungrateful son of mine was that Geats guy in the very beginning...
Sirzechs: So he, Isurugi, Ori and Mika weren't brainwashed...
Gendo: They...
Headmasters/Pro Heroes: (in unison) They betrayed us!
(Sougo is in peril. Union Academy now knows his identity as Geats. What will happen next? Will Sougo and his family be saved? Or the Union Academy will get their hands on him?)