While the Special Investigation Unit play poker, Mitsuhide Nira, the leader of the 1st Division pays a visit, poorly criticize them and the Unit as a needless division and threatens to shut it down if he didn't get a recent report on them. Shinnosuke spaces out at a park, looking at his old photo with his late father and wished to tell him about all of the cases he solved as a Kamen Rider. He even wanted Drive to fully become a part of the police forces but Mr. Belt (through Shift Speed) denies it, fearing that Roidmudes will infiltrate the police forces and eliminate Drive from within. Shinnosuke received a phone call that a wave of Heavy Acceleration just detected.
At said location, Roidmude 007 had just break free Hajime Taga, a prisoner and offered him an absolute power by combining with him. Accepting 007's offer, he becomes the Sword Roidmude and tried to attack the decelerated police forces before Kamen Riders Drive and Mach stopped him. Sword flees from them, having known whom he will after next. While the police forces approached Drive in astonishment, Kiriko spotted Chase and sent Justice Hunter after him. Heart and Medic discuss the news of 007 fusing with a human to evolve. Knowing Brain won't be too smart to create the new Viral Core, Heart suddenly knows who is the true mastermind.
Now knowing a new type of evolution 007 has gone through, the Drive Pit crews discuss this matters and debating on how to eliminate 007 without killing the human. As Go decided to track Sword on his own, Rinna offered herself to modify the Drive Driver to set it to killing Roidmudes, though still needed a sample of an Advanced Roidmude. Shinnosuke suddenly realised that he's late for meeting with Kiriko decided to go off while getting the sample of an Advanced Roidmude. During the meeting at the Unit's office, 1st Division officers expressed their apology to Genpachiro for not believing the existence of Kamen Rider and Roidmudes, revealing that they were the ones whom laughed him in one episode. Nira stopped them and tried to claim back his men while urging the unit to apprehend Hajime.
While patrolling with Gen via Tridoron, Shinnosuke quietly excited that the whole division had at least tried to gave the Kamen Riders their support, despite being unable to transform into Drive when nearby. Shinnosuke suddenly stopped the car remembering Hajime clearly. Sometime before the Global Freeze, Hajime had just killed a police officer. He was quickly arrested by Shinnosuke's former partner, Akira Hayase. This makes Hayase as his current target. As Shinnosuke phoned and warned Hayase at his hospital, the latter agreed but urged Shinnosuke to come faster as he doesn't want more patients to become victims. Kiriko approached to Chase and asked him for his help. Chase confused, since he is a Roidmude, followed by multiple of his assassination attempt on her and Drive but she still trust him, even Kyu Saijo revealed himself, having sent by Shinnosuke to spy on Kiriko and told that he even believed that Roidmudes were not so evil since he encountered one. Chase transformed into Mashin Chaser and rips off one of his Violet Guard to Kiriko as a sign of cooperation before leaving. Kiriko phoned Rinna later on much to Saijo's shock.
Sword started to attack the hospital and nearly killed Hayase until Tridoron appeared and for Shinnosuke and Gen saved him. Kamen Rider Mach appeared and fights him but still unable to fully kill Sword due to being partially human. As Rinna arrived with the Drive Driver, Shinnosuke forced to transform into Drive in front of multiple onlookers, including Gen and Kyu. Drive fights Sword in Type Speed, followed by Type Formula Sparner before reverting back and separated 007 from Hajime with SpeeDrop. As 007 tried to get away, Drive jump into the ejected Tridoron cabin and eliminated him with Drift Slash. Luckily, his Core was saved by Roidmude 001. Shinnosuke quickly arrested Hajime for escaping custody and attempted murder.
Mach approached Gen and Kyu, revealing him as Go much to their shock. News of Hajime's apprehension reached Nira, even surprising him with the fact that Shinnosuke is Kamen Rider Drive. Shinnosuke showed Gen and Kyu the Drive Pit. Jun appeared, having known Krim as his former colleague and that the Special Investigation Unit's formation was his plan all along to help Drive. Shinnosuke relieved over the fact that he will never stressed over his double life as Drive but Jun even made Drive's secret identity to the public much to their shock.
- Big "WHAT?!": When the Chief reveals that he exposed Shinnosuke as Drive to the entire world, the entire Unit does a massive one.
- Call-Back: After seeing Sword Roidmude fighting the Riders, several members of the 1st Division apologize to Gen for laughing at him in episode 12.
- Game Changer: Its right there in the title. Even the commercial bumper played with this.After the break, Drive protects the citizens under his new status quo!
- Heroic Sacrifice: Hayase attempts this, facing Sword alone so that the Roidmude won't harm anyone else at the hospital while looking for him. Too bad that they plan to kill everyone else just because, anyway.
- Keeping Secrets Sucks: This episode shows just how much Shinnosuke hates keeping his role as Drive hidden from the Special Unit and the problems that it brings to them. By the end, it gets resolved.
- The Unmasked World: The world learns that Roidmudes and Kamen Riders are very, very much real. And that Shinnosuke is Drive.
- Screw the Rules, I'm Doing What's Right!: Kiriko and Belt-san tell Shinnosuke that he mustn't transform with so many people around, but he argues back that if he doesn't, the Sword Roidmude will likely kill many of the people there. He transforms into Drive to fight off the Sword Roidmude and save the hospital patients.
- Speak in Unison: When fighting Sword for the first time and he asks who the hell they are, Drive and Mach both reply at the same time, "We're the Kamen Riders!"... then look at each other, shoot the Roidmude and finish with "You haven't heard of us?!".
- Terrifying Rescuer: Hajime at first is just as terrified of 007 as the officers escorting him to prison.
- What Measure Is a Non-Human?: Mr. Belt flat out says that it's okay to kill Roidmudes because they're machines.
- Why Don't You Just Shoot Him?: Since 007 fused with a willing criminal (a cop killer nonetheless), Gou asks why even bother saving him and to just Rider Kick him along with the Roidmude. Shinnosuke and Kiriko, as police, are quick to disapprove this notion.
- The Roidmude Count: 67The Answer: Because of the emergence of the Neo Viral Cores and the subsequent reveal of Drive's identity.
