"So, it's your birthday tomorrow," Erin asked, snapping him out of his thoughts. Jay looked up at his partner, wondering where she was going with this. He nodded, his hands brushing his thighs.

"You remembered," he told her. Truth be told, he was surprised she remembered. Sure, they were partners, but his birthday was easily one of his least favorite days of the year, and that was information very few people knew.

"How could I forget?" she replied. "It pops up on my Google calendar."

He wasn't surprised at that. Erin was weirdly obsessed with her calendars and he remembered the time he asked once on a stakeout and got more than he wanted to know.

"Yeah, supposedly the guys are throwing me like a surprise party at Molly's. You should come."

She nodded and silence fell between them once more. Things had been weird between them lately, hell it had been weird for everyone in the unit. The last few months had been nothing short of crazy and Jay was starting to get worried as Erin had flown off the rails in more than a few cases.

"So, I read this article, okay," he began, despite his brain telling him to shut up. "About this married couple that bought houses across the street from each other, and the guy would go over for dinner every night. They'd eat, they'd have sex, and then he'd go back, he'd work on his hotrod, and they made it work like that for like 42 years without getting divorced."

The look of skepticism on Erin's face told him he was an idiot. He had hoped that story would lighten the mood. They used to be great friends, always joking and this was one of their favorite games: telling each other weird news headlines and articles they'd read, always trying to one up each other.

"Okay," she told him, picking up her drink again. "If that's your ideal situation."

"I never said ideal," he replied, about to say more until the static of the radio interrupted him.

"Units on the City Wide. We have a hold-up alarm at 680 North Michigan, North Schiller Credit Union. We're getting multiple calls of shots fired. Bank robbery in progress."

Neither of them hesitated, Jay grabbing the radio as Erin through cash on the table to cover their breakfast.

"That's five blocks away," she told him as he headed out the door.

"5021 George, plain clothes officers responding," he radioed in, rounding the truck and quickly getting in. He heard the passenger door open before he could open his own, telling him Erin was right behind him.

The drive to the bank took less than five minutes before he was pulling up to the curb outside the bank. He could see people running out of the bank, some holding onto others, some looking for any kind of help.

"What happened?" Erin asked a man as he ran to them.

"They just went down Grand!" the guy told them. "On bikes."

"What do you mean? Like ten speeds?" he asked, drawing his gun as he surveyed the building in front of them.

"No, motorcycles," the guy said, pointing down the block as Erin ushered him to leave. He watched as she headed towards the building, pushing through people trying to run out.

"Lincoln 5021 emergency," she radioed. "Witnesses say that the suspects fled westbound on Grand Avenue on motorcycles."

He split off from her once they were inside, trying not to focus on the chaos around them. He found a body on the ground, a woman beside the man as he knelt down to check his pulse.

"Are you alright?" he heard Erin ask someone.

"They shot him multiple times," the woman beside Jay asked. The lack of a pulse told him everything he needed to know.

"Hey Erin," he yelled as his partner made her way to him. "He's gone."

"Are there any other offenders in the building?" she asked the woman. Jay stood, the woman following suit as he once again looked around at the people inside.

"No, but they shot the guard and they shot Jackie," she told Erin before motioning with her hand. "Come this way."

Erin followed, Jay right behind as he kept his guard up, despite getting confirmation there was no more offenders in the building.

"5021 George, we're inside the bank. Roll multiple ambos."

"Copy that, 5021 George."

They were led to one of the rooms in the back, multiple people on the ground, including one he assumed was Jackie.

"Ok, give me some room," Erin said, tending to Jackie as she clutched her thigh.

"I've got a female, white, 50 years of age, gunshot wound to the leg," he continued. "She's bleeding pretty bad."

Erin took the belt from her jacket, using it as a makeshift tourniquet to tie around her thigh.

"Let go, I got you" Erin told her, looking up at the woman. "Look at me, breathe, just breathe."

She shot a look at him, letting him know that the woman would be okay. Now all they had to do was find the guys responsible for this. They didn't have to wait long for the paramedics, as the heard the sirens outside minutes later. Knowing the woman was in good hands, Jay retreated back to the lobby, beginning to ask questions while they waited for Voight to arrive.

Jay saw Erin beside the gurney as they rolled the woman out, quickly falling in step himself.

"An officer will meet you at the hospital and he'll take you statement when you're ready," Erin told her. "You are going to be okay."

He spotted Voight behind Erin, walking towards them. It was clear that they caught the case and Jay didn't know where to begin.

"Hey, follow this rig to Med," she told an officer.

"Copy that," he responded.

"So, one wounded, one dead?" Voight asked them as they headed back to the bank.

"Yeah, security guard didn't make it," said Erin.

"Whoever did this came in heavy," he added. "They hit the tellers, they hit the vault. Vanished on motorcycles with over 150 grand, according to the manager."

"He say whether they handed out dye packs, GPS trackers?" Voight questioned.

"Haven't gotten that far yet," he told his boss, following him and Erin into the bank lobby.

"Sergeant," an officer began. "A witness saw one of the offenders drop this when they were fleeing. I got no idea what it is."

"Oh, it's a cell jammer," Voight answered before around. "Bag it as evidence."

He took the jammer from the officer, glancing at it for a better look.

"And make sure you got a copy of everyone's ID that you interviewed so far," he heard Voight say.

"Yes sir," the officer responded, his attention still on the jammer.

"I need you outside to move the yellow tape back 50 yards and roll in the crime lab."

No, it couldn't be. Jay knew that voice from anywhere and he didn't expect her. He heard the officer start to argue, a small voice in his head feeling sorry for the guy because he was going to lose.

"Now," she said, her voice soft and commanding, a combination that seemed deadly, and since he didn't hear anything else, he knew she won that round.

Jay looked back then, watching both Voight and Erin look at her, confused and maybe a little pissed. He didn't miss the side eye she shot him before giving her attention to his boss.

"Detective Upton, Robbery-Homicide," she introduced herself, glancing to Erin after.

"Hank Voight, Intelligence," Voight said, clearly not wanting to give her anything else.

"Well, I appreciate the help, Sergeant, but as of now, this is my scene," Hailey told him. Jay stayed silent, watching the back and forth like it was an Olympic sport. He could see Erin developing a dislike for her, but in not Erin fashion, stayed silent.

"My team recovered evidence, saved a woman's life," Voight told her. "We're running point."

He shot a glance at her, hoping she would drop it. This was not a good time to get into it with Voight.

"Make sure those shell casings are photo'd, bagged and tagged," she ordered one of the officers on scene. Voight turned back to her then, the look on his face telling him this wouldn't end well.

"I've been after this crew for the last three weeks," she told him, once again shooting a glance his way.

"Huh, then why did my team respond first?" he asked her.

Jay tried to keep a straight face, as he became increasingly uncomfortable with this situation. But he knew it would take more than Voight's question to deter her.

"I'm from Robbery-Homicide," she told him. "There's been a robbery and a homicide here. So, I'd appreciate it if you vacated my crime scene."

Without another word, she walked away, passing by him so closely he had to step back. Voight looked at him, the look on his face surprising as there was a hint of what Jay thought was amusement there. All he could do was bite his tongue, pretend to act surprised when he really wasn't.

Because that was Detective Hailey Upton, Robbery-Homicide, his wife.