He can feel the building begin to shake under his feet before it comes down. He only has a split second to dive under the closest table, with barely a moment to check his surroundings before it happens. The room shakes, windows rattling as the walls come crumbling down around him. It's all a blur, thick dust clouding his vision. He can hear the screams echoing out across the building before it falls to silence, he's trapped encased in rubble and dust. He hears the faint squeak of his radio struggling to pick up a channel through the collapse.

He can feel the panic starting to crawl up his lungs as he shifts his weight, so he's no longer holding it all on his knees.

He's half way through calling in his location when Hailey's voice cuts off the radio. "Are you okay? Are you hurt? What the hell Jay? I thought you were waiting." He can hear the desperation in her voice as he squeezes his eyes shut trying to control his breathing.

"I'm okay...really, it's barely a scratch. I'm just a little stuck right now." He lets out a shaky breath before pulling the radio close to himself, he's not sure who's he's trying to convince, himself or Hailey. "I thought...I thought I could talk him out of it."

He really thought he could. He thought he had this. There was something about military cases that stirred something up in him, something no amount of hour sin therapy could ever fix. His need to help his brothers. The belief that what they'd seen bonded them in a way that would never be able to be broken, and no matter how many times he got burnt by this belief he never gave up trying.

The radio falls silent but he knows she's there, he can hear her quiet breaths through the radio. "Fire is on the way Jay." Her voice is quiet and controlled and in full work mode but all Jay can hear is her quiet breathing. This morning he'd spent the first few minutes of his day just watching her breathe, his arms wrapped so tightly around her, their legs tangled under the soft white sheets as the sunlight filtered through. Their warm little bubble, so safe and secure.

"Help..." A quiet voice breaks out drawing Jay's attention, it's faint but he can hear it. "Help me please..."

His eyebrows furrow as he tries to work out the direction the pleas for help are coming from. He makes out a small gap in the distruction where the light is filtering in, carefully he reattaches his radio to his duty rig, shuffling down on his stomach, he pulls himself forward through the gap.

A steel beam lays across an elderly gentleman's legs, he looks late 70s maybe, with light grey hair now covered in dust, his hands holding tightly around the beam desperately pushing against it.

"Sir..." Jay jumps into action, crawling faster as he makes his way through the gap. "Sir are you all right?"

His brain kicks into work mode, shutting off any lingering thoughts on not making it out of here alive as he assesses this situation. The mans bleeding pretty heavily, his legs crushed on the beam that might be the only thing stopping him from bleeding out. It's far too heavy for Jay to lift or even try to shift, instead he manages to use his belt as a makeshift tourniquet.

He calls through the radio, listening intently as Brett comes over the air waves to get an idea of the gentleman's injuries. When Jay does manage to finally slow the bleeding the radio crackles back to silence and Jay looks down at his blood stained hands, wiping them on his jeans in the hopes the gentleman won't see just how much there is as he sits beside him.

"You're a detective you say?"

"Yes...erm sorry I never got your name."

"Arthur Brady...I would say nice to meet you but..." The man half chuckles as Jay gives him a short nod wondering how he could be so chipper in a moment like this, surely he can feel the extent of his injuries, even if he can't he can definitely see the severity of the situation.

"Whatever you do Jay keep him talking until we get there."

Bretts words echo in his mind.

"Arthur...Arthur talk to me...tell me what brought you here today."

Time seems to tick by slowly, the faint crackle of Jays radio fading in and out every so often. Fire had arrived, but it was gonna be a long wait until they could get to them. The building was not on steady ground and the aim was to get as many people out alive as possible, however long that took. Hailey's voice had only come through the radio once more in that time, just to say the bomber's body had been pulled from the wreckage near the exit...he hadn't made it. In the meantime Jay continues to probe Arthur with more questions in the hope it will keep him awake, but he's also glad for the distraction that it provides him. Sitting still, having nothing to do...that's never been Jay's speed. He learns that Arthur was at the bank to get some cash out for his granddaughters 21s birthday, he has two daughters and a son and 6 grandchildren. He was a wedding photographer for 47 years before he retired 10 years ago.

"My wife Katherine...oh she's beautiful. You know we've been married 53 years this year..." Arthur explains as he pulls a worn leather wallet from his top pocket, handing it over. Jay could see the old photo inside, it's slightly faded but he can make out the image of a bride on her wedding day, the vail thrown back over her hair to reveal her smiling brightly at someone behind the camera.

"So what's the secret to making it work?" Jay questions, his gaze falling back to his own phone and the photo of Hailey that lights up his background. He'd dragged her along on a hike a while back, with the promise of getting doughnuts after. She'd been laughing at something he'd said as the sun went down behind her, making her blonde curls glow and he'd snapped the pic before she'd had a chance to protest.

"Marry your best friend. Marry someone you can laugh with. The kind of laugh that makes your belly ache, and your nose snort. Marriage is hard. Life is harder. There are days when you'll wanna walk but as long as your relationship is buried deep in friendship you'll always find your way. You think you might know someone like that?" Arthur asks with a slight twinkle in his eye as he nods towards the phone in Jay's hand.

Jay nods, a soft smile growing on his face as he runs his thumb across the photo on his screen, handing Arthur back his own photo. "Yeah I think I do...and she's almost guaranteed to be just outside this building right now, she's gonna be so pissed at me for being here."

"I don't think Katherine will be too happy either...will you...will you tell me about her?...what's her name?" He nods down towards Jay's phone again.

"Hailey." Jay whispers softly, he can already see her arms folded across her chest, tapping her foot impatiently on the street, eyes trained on every person emerging from the wreckage. Honestly what he wouldn't give to hear her knowing tone telling him that she's sick of hospital waiting rooms right now.

"She sort of came out of nowhere, I wasn't really looking for anything when we met, actually...there was someone else when we met. I couldn't even tell you the moment everything changed...trust me I've tried to work it out but it's just like one day she was my partner and friend and the next she was the one person I could never live without. I remember looking over at her years ago and thinking I could lose all this...this job. This job that I've let define me for so long but it wouldn't matter as long as I was with her."

"Sounds like you're in deep...How come you're not married?"

"Oh we haven't been dating that long...I...we still have some things to figure out." Jay swallows, if he's honest he'd marry Hailey tomorrow. He'd have married her six months ago given the chance. As soon as they started dating he knew he couldn't ever imagine spending his life with someone else. He knew it a week in, he'd come in from an early morning run to find her sitting on the kitchen island coffee cup in hand, his t-shirt hanging loosely on her body as she read the morning news. She'd handed him his coffee without so much as a second glance and he'd known in that exact moment. It had taken everything in him not to get down on one knee right then and there.

Things had changed since their first I love you, he was even more careful with her. He didn't want her to be overwhelmed, he wanted to help her in any way he could. She was trying, really trying and she had gotten good at letting him know when she felt flustered by their relationship, when she needed space or when she needed reassurance. He was all too happy to comply, he was happy to do whatever it took to make this work.

"Don't waste time...not with the people you love." The sad look on Arthur's face like he's almost defeated makes Jay think the elder man might be close to giving up as his eyes flicker shut briefly.

"Tell me more about Katherine." Jay urges, he wraps a hand around Arthur's wrist, checking his pulse as he does. It's weak.

"She's the dream. I was a New Yorker you see, born and bread...was only here for a wedding 54 years ago when I saw her through the window of a cafe"

"And you knew right then and there?"

"God no." Arthur begins to laugh but it turns into him choking as he struggles to catch his breath. "I don't believe in love at first sight. Love...real true love takes work and a lot of it. You've got to choose that person every single day." He croaks out, his eye sparkling as he recalls the memory in his mind. "What I did know was she was the most beautiful woman I'd ever seen. I was a young man at the time, full of a confidence I had no real right having." Jay chuckles, he's been there, the cocky confident guy in his 20s thinking he knew it all. "I could never have known the love that would've formed, so deep it almost shook me to my core. I'd never been in love before, but I'd seen others, especially in my line of work and then I got it, I got why people behave the way they did. I remember thinking if this is what love feels like I get why it starts wars." He's words trail off and Jay watches the way his head drops slightly.

"Hey, Arthur...Arthur we're almost out you hear me. Stay with me now Arthur. Katherine is waiting, she's still waiting for you."

"Will you tell her..."

Jay shakes his head furiously. Leaning up as he twists his radio, calling out for an update. "No no...I'm not going to pass on any messages." He mumbles, grabbing hold of both Arthur's shoulders. "You're gonna tell her Arthur...Katherines waiting for you."

"You tell her I loved her and that she made my world a better place." He mutters before his eyes roll back and Jay begins to bark down his radio desperate for anyone to respond.

It is only seconds later the loud ringing of a drill sounds and Kelly Severide's voice echoes around them. Jay can feel the relief flooding through him as the familiar uniform comes into view.

"Jay..." The bright sunlight is a stark contrast from the darkness he'd been buried in the last few hours, the buzz of the scene hitting him is almost deafening as he hears orders being shouted out. "Jay..." Hailey's voice stands out amongst the noise. As he steps out away from the building, he's ushered past the destruction zone and he can hear Brett asking him to sit but he's too focused on finding Hailey as he scans that area.

He hears more commotion behind him watching with bated breath as Arthur is pulled from the rubble, he's attached to a bodyboard, as the next set of paramedics rush to his aid.

He doesn't even see her approach before he feels her arms wrapping tightly around him, he releases a breath he's been holding since the building first blew as his arms wind themselves around her waist, he sticks his face into the side of her neck letting the wisps of blonde that's fallen loose from her ponytail tickle his face as he does. They've never been ones for any type of public affection, while they're on the clock anyway but right now he can't bring himself to care. He breaks away after a while, already missing her touch but he knows they have an audience. He watches as they lower Arthur down onto the gurney wheeling him their way.

"Is this her...is this your Hailey?" He coughs, struggling as they place the oxygen mask over his mouth.

Jay can see Hailey glance his way, shooting him a silent question. "Yeah, this is her." Jay nods, crouching down closer to Arthur.

"I'm gonna go get Katherine okay? I'm gonna bring her to you Arthur so don't go anywhere." Jay grips hold of Arthur's hand, making sure the man sees the sincerity in his eyes as Sylvie lets him know that they need to move now. "Take care of my girl and I'll take care of yours okay?" Jay asks, glancing back at Hailey who's just watching silently.

"Deal..."

He steps back letting them get him into the ambulance as he turns back to Hailey. He can see from the look on her face she has a lot to say and he'll happily listen to everything but just not right now. "Hey I'm okay I promise I'm okay and I'll sit and get a full checkout at the hospital just to please you but first I have something to do, please just trust me and keep Arthur company until I get to the hospital."

"Erm sure okay..."

Jay smiles as she agrees without question, pressing a firm kiss on Hailey's forehead surprising her before he's rushing off through the crowd without another word.

Hailey loses sight of Jay almost as quickly as she finds him, her heart is still thumping in her chest as she tries to keep reminding herself that he's alive, he's alive and safe and doing whatever the hell he does. She'd done as he asked, joining the man he'd been pulled from the rubble with into the ambulance.

The ambulance roars into life and she watches as the elderly man begins to pull down his oxygen mask much to the dismay of the newest recruit to 51, his hand shaking as it reaches out for Haileys.

She takes his hand in hers. It's cold but it squeezes onto hers tightly. She'd heard the tail end of their conversation. " You take care of my girl...I'll take care of yours." She's not sure what Jay has planned but she trusts him, no questions asked.

"That man loves you more than life itself dear." Arthur croaks and the tears that she refused to let fall in front of all their colleagues finally fall, splashing against her cheeks, his words catching her off guard.

The E.R is a mess, overrun with victims from the blast, no one can tell her anything as Arthur is rushed off for surgery, she's not family, she has no right to know. So instead she takes a seat in the corner out of the way of the chaos.

She thinks she might be dreaming when he finally emerges through the doors, still dressed in his blood-stained clothes, an elderly woman holding tightly to his arm as he leads her through the crowd and towards the front desk. His eyes find hers quickly like he doesn't even need to search for her, he just knows where she is and the small smile that plays on his lips as their eyes meet is enough for her.

It's hours later when Katherine and Arthur are finally reunited. Jay helps Katherine towards his room, stopping in the doorway as Hailey hangs back. She's still not sure what the infinity with this couple is but she'll go along with it if that's what Jay wants.

"That's gonna be us one day." He mutters quietly as the door slips shut and he steps back out into the hallway. Hailey raises her eyebrows in surprise as Jay makes his way around her, his arms encircling her waist as he leans his chin on top of her head. Both of them watching the elderly couple through the window. The way Katherine caresses Arthur's face as he presses a kiss to her hand. The look of pure joy to see each other is so evident in their faces.

"Minus the major bleed and building collapse I hope." She hums, leaning back into his embrace, finally feeling at ease as the weight of the day seems to slip away.

He nestles his face into her neck, pressing a light kiss to her skin. "I make no promises..."

"Hey..." she laughs, shaking her head as she places her hands on top of his, she can feel his lip quirk up into a grin against her neck and it makes her own lips turn up. "How are we going to grow old together if you keep being so reckless?"

"That's what you love about me."

Hailey turns in his arms, slipping her arms around his waist, one hand stroking his back softly. "I assure you it's not...but I do love you." She whispers the last part, she still struggles to say the words but each time she does it feels a little easier, like the words that were once so dark get a shade lighter each time she says them or hears them fall from his lips.

She watches as Jay takes a sharp breath, before resting his forehead against hers, closing his eyes softly just breathing her in. "I'm gonna say something. It's not a question it's just a thought...okay? I'm giving you fair warning for when the time comes."

Hailey narrows her eyes but nods anyway, letting him pull her to the side as the hallway becomes busier. "I love you...you're my best friend and..."

"And?"

"And I'm gonna marry you one day."

Her blue eyes widen for a second and Jay bites down on his lips to stop the smile that comes every time he looks at her. He can see the thoughts whirling through her mind like waves crashing around the ocean. He feels her arms squeeze his waist a little tighter before she simply shrugs. "Okay..." she mumbles , laying her head back against his chest as she turns her gaze back towards Arthur and Katherine. They stand there for a moment in silence and he wonders if she can see what he can...a glimpse at their future. His thoughts are confirmed when he feels her lips pressed to his cheek curling up into a smile against him. "Okay...I'll marry you one day."