(French Voice: 10 years later)

after 10 years of being stranded in the wasteland that was once America in this alternate dimension and being part of the Brotherhood of Steel. It was all great for Kai, Felicity & Leela.

after the Enclave's capital wasteland branch was defeated, Kai & Felicity confessed their deep secret feelings to each other and 1 year later, they got married...But they weren't the only ones because much to Kai & Felicity's shock, Leela & Steven happened to develop feelings and also got married after Kai & Felicity did, just to be even with them

But then after Liberty Prime was destroyed by an orbital bombardment planned by the Enclave, which led to their second defeat by the Brotherhood, Felicity was depressed and vowed to fix the pre-war patriotic robot titan someday in the future....

but now, we see an old Humvee that has been repurposed for the Brotherhood of Steel speed up and swerve at a cliff

(the Humvee looks like this, ignore the Power Armor guy next to said humvee)

and then we see the driver door open, revealing Felicity stepping out from the vehicle and stared out at the Boston Commonwealth

Felicity: hell fuckin' yeah!

then Leela & Steven stepped out from the Humvee and walked next to Felicity

Leela: so, this is Boston?

Steven: yep... or at least what's left of it since... you know.

he whistled and and made a boom sound from his mouth

Leela: (giggles and smiles) yep, we know.

Felicity: yeah, it still feels like we found out about it yesterday. Right, Fetch?

She said as she looked at her pet hyena, who was doing the hyena laugh.

Kai: (offscreen) yep, even though it was around a decade ago, it still feels like it was yesterday.

Kai then stepped out from the Humvee and smiled at the gang

Felicity: yep, time sure does fly by pretty fast.

Steven: agreed, it sure does. (stern tone) but still, remember why we're here, everyone. Since Arthur Maxson became High Elder of the Brotherhood, even though his family bloodline were always high elders since Roger Maxson founded the brotherhood, he sent us on a mission to meet up with Paladin Danse at the Cambridge Police Station.

Leela: (smirks) then that's where we're going.

Kai: Yep, agreed.

he glanced at his T-60 power armor, or at least the upper half of it since it is tied to the back of the Humvee and is seen to be severely damaged after he tried fighting against a Mutant bear known as a Yaoi Guai and since then, he's never gonna do that again..

Felicity: sorry about the armor, Kai. That bear was fuckin' messed up.

Kai: Agreed. (deadpan) I'm never fighting mutant animals again.

Leela & Steven nodded in agreement since fighting a Yao Guai or any big mutant animal, such as the infamous DeathClaw, is pretty much a terrible idea.... unless you have a strong weapon that's powerful enough to kill said mutant animals

Then the gang entered back inside the Humvee and drove down the hill and into the Commonwealth

(French Voice: A few hours later)

After Kai, Felicity, Leela & Steven arrived at the Cambridge police station and met up with Paladin Danse and his recon team, along with another Vault Dweller names Nathan and was allowed to be in the Brotherhood of Steel after assisting Danse from a pack of Feral Ghouls and later on Nathan & Danse left to get a Deep Range Transmitter to contact Elder Maxson... we see our band of Brotherhood heroes standing on top of the station chilling out and waiting for some action....Until Steven saw a certain airship in the distance as he smiled at the sight

Steven: well, look. the Cavalry has Arrived.

Kai, Felicty & Leela turn and then smiled at seeing.... The Prydwen arrive, meaning that Elder Maxson has arrived too

https://youtu.be/6bXDohPOnUI

Felicity: (smirks) right on time.

Kai: (smirks) agreed.

Then he and Felicity fist bump

Felicity: Now let's do this so I can get back to building Molten Freddy, which I told the Brotherhood to put on the Prydwen before we arrived here.

Leela deadpanned at Felicity

Leela: Ten years and you still build FNAF animatronics?

Felicity: (shrugs while smiling) hey, it's my passion.

Kai: yep, it truly is.

Leela nodded in understanding that it is true after all and then, steven spoke up

Steven: I bet Elder Maxson wants us to meet up with him at wherever the Prydwen will be arriving, so we better get ready.

he walked to the door leading downstairs and opened it for Leela

Steven: my lady.

Leela smiled and kissed him as she and steven walk downstairs and head to the Humvee outside

Kai: (smirks) i still can't believe that Leela & Brotherhood Steven love each other. (stern eyes) unlike the steven we knew back home.

Felicity: yeah, our Steven back home is probably doing a life sentence in jail by now.

Kai: yeah, probably. anyways, we should get going so Leela & Steven won't leave without us.

Felicity nodded as she and Kai run downstairs and catch up with Leela & Steven before they leave to arrive at wherever the Prydwen docked at

(AT THE BOSTON AIRPORT)

Kai: well, hopefully the next mission isn't as brutal as last time.

Felicity: hopefully. (Whistles) Fetch.

Fetch then showed up after leaving the Humvee's backseat and ran up to Felicity

Steven: I'm still wondering how Fetch is even that fast after hearing Felicity's whistles.

Leela: yeah, same here. (smug smile) But you get used to it.

Steven nodded in agreement with his red-haired wife because he also got used to Fetch being unknowingly fast whenever the hyena hears a whistle

Kai: you guys go on ahead, I'm gonna park the Humvee somewhere close by.

Felicity: okay but hurry up.

Fetch: (barks twice)

(ON THE PRYDWEN)

After Kai parked the Humvee at a good spot that's remarkably close to the Brotherhood's airport base, we see Kai arrive inside the Prydwen's deck right on time as Elder Maxson started this certain speech right now

https://youtu.be/4SgggreICvo

Kai: Well, we'll be ready to stop the institute.

Felicity: fuckin' yes.

Fetch: (growls and barks twice)

Elder Maxson: i care about them, you know. The people of the Commonwealth.

Felicity: but I thought we were preparing for a war against the Institute.

Elder Maxson: we're here to prevent a war by starting one of our own. the only difference is that our war won't reduce our civilization to ashes.

Felicity: alright then.

Elder Maxson: I'm glad that you understand.

he then looked at Kai

Elder Maxson: also, Kai, I know what happened to your old power armor (stern eyes) after you fought against that Yao Guai a while back... but don't worry, since your old suit is beyond repair, I ordered Proctor Ingram to have you a new suit of T-60 power armor ready for you to wear.

Kai: wait, really?!

Elder Maxson: that's right, you do need the necessary protection for fighting against the Institute after all.

Kai: (smiles) I'm honored, Elder Maxson.

Elder Maxson: And I'm grateful that you are. I'll inform you three on your next assignment later, right now try to get caught up on everyone here in the meantime. Dismissed.

Kai & the rest saluted while Fetch barked in response to Elder Maxson and they went up the ladder, leading to where the Prydwen's crew are at now as Elder Maxson looked back out to the commonwealth with a stern look on his face