Two months after the visit to the training center and her talk with Jay, Hailey can see a difference in her partner. He doesn't seem to be beating himself up as much and the progress he is making with his training with Casper is great; it's like they are each other's other half.

After talking with Nate, they decided to wait a while longer before they start on another task. Casper now lays on top of Jay without the help of a treat. The next step is to get Casper to recognize when Jay is having a nightmare.

Hailey looks up from her computer to see Jay focused on whatever is on his own computer. It is actually quiet, Voight is at headquarters in some meeting and Kevin and Adam went to talk to a CI, leaving only the girls and Jay in the bullpen.

Hailey's phone rings breaking the silence of the room.

"Upton," she answers. "Okay, thanks, Natalie." Hailey hangs up the phone before grabbing Jay's attention. "Victim woke up, want to take a ride?"

Jay nods his head, before getting up and following Hailey out of the bullpen.

Arriving at Med, Natalie leads the two detectives to the room. Since the victim was a young woman, Jay lets Hailey take the lead when they enter the room.

"Hi, I'm Detective Upton and this is Detective Halstead. Do you mind if we asked a few questions?" Hailey asks while Jay hangs back not wanting to make her uncomfortable.

"I don't know if I'll be any help, but okay."

"Do you remember anything about the person who attacked you and your friend?" Hailey asks.

"Um, he was wearing a hoodie, I thought that was weird."

"Did you see any identifying marks? Tattoos? Scars? Piercings?" Hailey asks.

"I think there was a tattoo on his neck. I couldn't tell what it was though, his skin was too dark."

"He was black?"

"No, he had darker skin, but it was more olive, maybe. I didn't get a look at his face, I would have a better idea of a nationality if I did. I'm sorry."

"No, no. you're doing good. Do you think you could tell how tall he was?"

"Close to your height," she says while pointing to Jay.

"You did good," Hailey tells her, thanking her for the help before leaving with Jay.

"Do you think that helped much?" Jay asks as they walk the halls to the exit.

"It's more than what we had before," Hailey answers him.

By the end of the day, the team is ready to get out of the office.

"What is everyone doing tonight?" Adam asks the team as they leave.

"My sister is in town so I'm going to catch dinner with her," Kim answers first.

"I don't have any plans, just finding something on Netflix," Vanessa adds.

"I was just going to catch the Cubs game," Kevin tells Adam.

"What about you two?" Adam asks the two detectives.

"Will is stopping by my place with Kohl," Jay answers.

"Just go home and relax," Hailey answers.

"Is anyone up for Molly's?" Adam asks.

Vanessa and Kevin agree while Hailey gives him a maybe.

As they walk out of the district to their cars, Hailey pulls Jay to the side, "Is everything okay?" she asks.

"Yeah, why?"

"Has Will ever brought Kohl to your place since you got Casper?"

"No."

"Why now? You've had him for nine months now?"

"I was looking at his paperwork the other day, turns out today is his birthday," Jay tells her.

"Jay!" Hailey slaps his shoulder. "Why didn't you tell me? I would have gotten him something."

"That's why I didn't tell you," Jay tells her. "You can come too if you want, that is- if you're not sick of us."

"Never," Hailey smiles as they head in the direction of their respective cars.

Later that night, the two brothers and Hailey along with the two dogs are in Jay's apartment.

Will opens a white tasty cake and puts a candle in it. Jay holds Casper so he doesn't get hurt by the flame, Casper's training taught him not to take food, but Jay isn't taking any chances. The three sing happy birthday to Casper.

Before Jay blows it out for Casper, Hailey takes a picture of Jay and Casper with the tasty cake in front of them.

Once the candle is safely off of the treat, Jay lets Casper eat the tasty cake. When Casper finishes, Will gives Casper a new toy and Hailey gives him a new bone adding to the toy that Jay got him. "I told you guys you didn't have to get him anything," Jay tells them.

"We wanted to," is the simple answer that they reply in unison.

"Thanks," Jay replies, not knowing what else to say.

"Here, this is for you," Will tells Jay as he hands him a vest. "I ordered for your birthday, but it didn't come in time. I figured that since Casper is just about done growing you can get a vest without worrying about him outgrowing it. You can use it when you're ready," Will tells him, knowing his brother isn't ready for a lot of people to know.

The vest is the same blue as Casper's collar and has his name embroidered on both sides. In a bag Will had several different patches for Jay to attach: Service Dog, Service Dog In Training, Do Not Distract, Service Dog No Touch No Talk No Eye Contact, Ignore Me I'm Working, PTSD Service Dog Do Not Distract, We Are A Team Forever, Access Required By Law No Exceptions and Not All Disabilities Are Visible.

"You can pick which patches you want to use when you start using it," Will tells him.

"Thanks," Jay whispers looking at the patch that says Not All Disabilities Are Visible.

Will notices what he is looking at, "I like that one too."

Hailey rubs Jay's back, "You okay with this?"

"Yeah, it just makes it real. I'm training my dog to be a PTSD service dog. What will people think of a cop with a PTSD service dog?"

"It doesn't matter what they think. You're a good cop and you're good at your job. That's all that matters," Hailey tells him.

"Hailey's right," Will supports. "You have my support and you have Hailey's support. You don't need to listen to anyone else."

"When you decide to tell the team, they will support you too," Hailey adds.

"Not yet," Jay tells her.

"Okay. You're in control, as far as they know, Casper is just your average dog," Hailey reassures.

"Thanks," Jay says, his facial expression saying more than his actual words.

"You know, it has to be fate that your dog's birthday is on Flag Day," Will comments.

"They were meant to be," Hailey smiles.

"June 14 is a pretty good day for it, isn't it?" Jay asks getting nods in return. "Happy birthday, boy," Jay tells Casper, giving him a good belly rub.