Cade heads to the Myers Detective Agency which is housed in a 19th century townhouse with refurbished windows, maroon bricks, and a very white picket fence. Cade enters the office where he sees pictures of the private investigators as well as two strange devices. He then heads to the door of the main office where Rowan Myers is engraved on the glass. He opens the door and is welcomed by a young man wearing a gray suit with a gray fedora.
"Hello, how may I help you?"
"Are you detective Myers?"
"Yes sir. My name is Rowan Myers of the Myers Detective Agency."
"Hi I'm Cade Winters. I need your help on an important matter."
"How can I help?"
"Someone named Flynn sent me here because he said that you would be able to help me."
"I see. Where's Flynn by the way?"
"He's at the shop with my friends."
"Okay. Is this concerning Pantheon?"
"How did you know?"
"Come on, everyone wants to know about that corporation. What do you need to know?"
"I need to know why they're at the forest constantly."
"Okay. You mean the forest that suddenly appeared?"
"Yeah. How did you know?"
"Well, I found a piece of the forest near this place."
"Look I need your help."
"Okay but we charge hourly."
Cade hands him several crumpled hundred dollar bills and says, "this will cover the first three hours."
"Fair enough. Hey Ozzie, let's go."
"Got it Rowan."
"Hey, who's that?"
"That's my twin brother Oswald. Oswald, that's Cade."
"Pleased to meet you."
"Anyways, we'll be going to Pantheon. We'll send you everything we find there. By the way, tell Flynn I said hi."
"Will do."
Cade leaves the office as the two prepare for their investigation. He pulls out three USB sticks that are silver, black and blue while Oswald pulls out three USB sticks that are green, red and yellow. They head to the garage where they get on their green and black rider cycle and ride out to Pantheon.
Later that night, Rowan and Oswald sneak into a bush where they take pictures of the front entrance. A security guard uses his key card and enters the facility. They rush in while avoiding the security cameras. They look around to see where the employees are while taking pictures of the facility. They notice a group of workers carrying a strange creature to a room and they follow them.
"Look Rowan. They're moving that monster to that room."
"Let's go."
They sneak into an adjacent room and quickly avoid any detection by security cameras. Then Oswald pulls out his phone and starts recording the session. The employee activates a device that electrocutes the monster to death. This shocks the twins who look at each other and decide that they had enough.
"We have enough for Cade. Let's go."
"I don't think so."
The twins are approached by Jack and several Piercers. They circle around the twins and activate the security system locking them down.
"Looks like we have intruders here."
"Seems so sir. What shall we do?"
"Don't worry. I'll handle them."
Jack pulls out a Lemon Energy lock and a Genesis Driver Belt which stuns the twins.
"What the hell are you?"
"Let's just say I'm your worse nightmare. Transform!"
"Lemon Energy!"
"Lock On! Soda!"
"Lemon Energy Arms!"
"Just call me Duke!"
"Oh great looks like we have another Kamen Rider to deal with. Hey Ozzie, let's do this."
"Right."
The twins pull out their W-Drivers and their two Gaia Memories.
"Cyclone!"
"Joker!"
"Transform!"
"Cyclone, Joker!"
"What the hell are you?"
"You can call us Double. Now it's time for you to count up your crimes."
"Bring it!"
Double engages Duke while Duke tries to kill them using his Sonic Bow. He then tries to perform a rider kick, but Double blocks it using their cyclone attack. They then fight the other Piercers, but is overwhelmed by the sheer numbers. Suddenly, a young man with scruffy peach hair, red leather pants, black leather jacket and red button up shirt shows up with his own Driver Belt.
"Hey Dorian. What the hell took you so long?"
"Sorry, traffic."
"Accel!"
"Trans-form!"
"Accel!"
Accel and Double team up to fight both the Piercers and Duke. Double then pulls out two other Gaia Memories to transform into their other form.
"Heat!"
"Metal!"
"Heat, Metal!"
Double gets their metallic staff and counters Duke's several attacks. Accel speeds up and defeats every single Piercer in his cycle form. Then Double pulls out two more Gaia Memories to access their other form.
"Luna!"
"Trigger!"
"Luna, Trigger!"
Double uses the Trigger Blaster and combines it with the Luna ability to have the blasts ricochet across the facility hitting all the Piercers even when Double is not looking at them directly. Accel then pulls out his Trial Memory and transforms into his Trial Form.
"Trial!"
"3,2,1, Go!"
"Alright, enough games, let's finish these guys off!"
"Maximum Driver Power!"
"Maximum Speed!"
Accel speeds up his attacks against the Piercers while Double engages in the Luna-Trigger Final Strike which cripples Duke and the Piercers.
"You bastards! I will make you pay!"
"Yeah right. We got all we needed, let's get out of here."
Double and Accel leave on their respective Rider machines and head back to their office so they can alert Cade on what they have discovered.
"Ozzie it looks like whatever they were doing to that monster they plan to do it with everyone."
"Yeah, let's get back to the office so Cade can know more about this."
"You got it."
They speed off back to the office while Pantheon attempts to recover the damage that was done to their facility.