The Trucks were racing down the road towards the inferno. Cruz and Tony threw the trucks into park and jumped out joining the huddle of firefighters all waiting for instructions from Severide.

"Squad 3 and Truck 81 on scene." Kelly said into his radio.

"Ten-four Squad 3" dispatch replied.

Severide moved to the center of the huddle. "Ok guys, were standing in front of the most dangerous building in our district. You all need to stay together and don't take any, I emphasize on 'any', risks. We want everyone to come home."

"You got it Severide!" They all agreed.

"Ok, Truck you take the second floor. Squad follow me and we will take the first." Severide said ask he started to put on his breathing mask and began to run in to the house.

"Truck!" Herrmann called.

Mouch and Cruz stopped.

"Whats up Herrm?" Cruz shouted.

"We are two men down. We will work as a three man team."

"You got it!"Cruz and Mouch replied then turned and ran into the flames. Herrmann following them.

"Chicago Fire Department! Call out!" Severide called out.

Capp and himself were in the far room of the 1st floor and hadn't found a body out of the rooms that they had searched. Then all of a sudden Herrmann radioed down from the upper floor.

"Kelly., have you found anything. We haven't, i think this building is vacant."

Kelly brought the mic to his mouth. "I think i am going to have to agree with your Herrmann, finish your primary search. We will get Engine to get the cannons on after we are out."

"You got it Severide. We are going to head out. We have finished up here." Herrmann replied.

"Ok, see you out there."

"Capp. There is nothing here! Lets go." Kelly called out as he started to exit the room.

"Severide wait! I got something." Capp called.

Severide ran over to him and took a piece of nearly burnt paper from his hand.

"This is arson" Capp said bluntly.

'How long can it take?' Gabby thought. She stood up and went to the kitchen, picked up a cup and poured the coffee into it. Then the team began to burst into the room.

"Hey. Gabby?" Antonio called out, storming into the room.

"In here!" She replied walking out into the main work space. "What did you find? Was he there?"

"No, there was nothing." Halsted said.

"Gabby we need you to do something for us..." Voight started.

"Yea, of course. Anything."

"We need you to tell us everything about Jason Cole and Matt. You know them both better than any of us and so you give us the best chance of finding them." Voight concluded.

Gabby leant against one of the desks. "Err..ok...what do you need to know?"

"OK, tell us everything. We will start with Jason." Lindsay said, tapping a picture of Matt and Jason to the whiteboard.

"Everything? Oh god...errr..." Gabby started.

"Do what you can Gabby" Antonio said, walking over to her and putting his hand on her shoulder. She smiled.

"Ok. Jason was born in Manhattan, New York. His father was a Navy Officer that was killed in a raid before he was born and his mother was a florist that died of cancer 13 years ago from what i understand..." Gabby started.

"Was he involved with any gangs?" Jay asked.

"I don't know" Gabby replied. "He joined the navy when he was 17, like myself. I met him when i was transferred to the US Navy from the Royal Navy. He was always really polite and kind. Then a few years after we met we were on our break from training and he just asked me if i liked him and i guess i did. We were dating for 3 years and then we were deployed out to Afghanistan for the mission he said that he would search the back and that was the last time i saw him until a few weeks ago when he came to the firehouse on transfer." Gabby finished.

Lindsay was busy scribbling down what Gabby had said about Jason next to his picture. She turned around, her pen still in her hand.

"What was he like when he arrived at the firehouse?" She asked.

"The same as he always was. Polite and kind, me on the other hand, i yelled at him and he yelled back, but he was civil to the rest of the guys." she replied.

"What was he like towards Matt?" Ruzek asked.

"He was the same, polite and kind!" Gabby said starting to get a little annoyed. She hated Jason, for what he had done to her and now for what he had done to Matt.

"Ok, i think thats enough. What about Matt?" Voight asked.

"ahhh. The good bit!" Gabby laughed. "Matthew Casey. Born and bred in Chicago. He was a normal kid until his mother shot his dad 16 years ago. Matt was 20 when it happened and he has blamed himself for it ever since. His dad was a firefighter for the CFD and that's why he became a firefighter, to honor his dad. I have known him since i started being a paramedic. We were all transferred to 51 when it opened. We instantly became good friends and i just fell in love with him."

She looked up at Antonio who was smiling back at her. He knew she was happy, that he made her happy. It also reminded him how much they needed to get Matt back. Gabby was days away from her due date and he knew that she needed him to be there when the baby was born.

"It was complicated at the start but we worked around it. Other than that there isn't anything else you need to know." Gabby finished.

Lindsay was still writing down all the information about both people. "They couldn't be more different." She said.

"Well if there isn't anything else i can do. I need to go and tell the guys what is going on. They deserve to know." Gabby stated.

"Yeah, Your right Gabs. Stay safe!" Antonio said as he hugged her.

"I will" she said as she started to walk towards the door.

"See you Gabby."

"Stay safe"

"Bye"

"Bye"

They all said as she walked out of the room.

Jason walked quickly into the warehouse.

"You have been gone a long time" Matt said a little agitated.

"Shut it fireman"

"well, that's not nice. I am your guest, you should treat me nicely."

"You wish!"

"No, i wish that i was at home with my fiance. Not stuck here with you!" Matt said harshly.

Jason stormed over to Matt, picking up a knife and pressing it to his throat and moved his face to it was inches away from Casey's face. "I'm not here to prat about!" he yelled.

Then Matt headbutted him and Jason fell back.

"You really want to try that?" Jason yelled angrily. "Huh?"

"Well, a guy's gotta have a little fun." Matt replied, his sass on point yet again. "Where have you been?"

"None of your business!"

"Where have you been?" Matt demanded.

"I set a house bomb for the rest of your firehouse boys!" Jason said harshly.

Matt went silent. Then he spoke up. "WHAT?"

"You heard me!"

"why?"

"Because i don't like you!" Jason replied.

"Are you doing this out of your own accord or are you working for someone?" Matt asked. Rage flooding through his body.

"Oh, i have been employed."

"Money again? What just like when you left Gabby to die!" Matt spat.

Jason again moved over to Matt and pressed the knife to his throat. This time him drawing blood. Casey kicked him away.

"Who are you working for?"

"I can't tell you that!"

"Sure you can!" Matt stated. "You're probably going to kill me before i get a chance to tell anyone." He could feel blood dripping down his neck.

"Did you know anyone by the name of Hallie Thomas?" Jason said smugly.

Gabby jogged into the firehouse.

"Gabby!" Herrmann called out, everyone looking up and smiling.

"Hey guys. I need to tell you all something!" she sounded unsure.

"Where's Matt?" Herrmann asked.

"You know as much as i know." She said quietly.

"What, so Matt has been kidnapped?" Cruz asked.

"Has anyone seen Jason?" Severide asked looking up from his paper.

"Jason has kidnapped Matt" Dawson said bluntly.

Kelly stood up. "What?"

"Yea, he has been missing 4 days. I'm sorry that i hadn't told you i have spent every human hour with Antonio trying to find him." Gabby said holding back her worry from her voice.

"Has Intelligence got the case?" Kelly asked.

"Yea, and their close i think."

"Kid, if there is anything we can do..."

"Thanks Herrmann but they are doing everything they can. There is nothing else i could have done there so they sent me home." Gabby said. "I just needed to see you guys before i did..."

"Thats sweet!" Cruz said smiling.

She smiled back. "Well im going to get some of Matt's stuff. He was meant to take them home and...well...didn't."

"Ok, we will see you later then Gabby?" Mouch asked.

"Errrr. I'm not sure. I don't know where my head is at the moment..." She replied.

"Just know we are here for you Gabs." Kelly said.

"Thanks guys." She said as she turned and walked to Matt's office.

"What about Hallie?" Matt demanded angrily.

"Oh. So that got your attention?" Jason said smugly.

"She was my fiance, well you obviously knew that!" Matt said angrily.

'Come on Hallie!'

Throughs flashed through his head.

'Hallie! Come on!'

Over and over

'Hallie come on! Breath!'

"You still there lieutenant?" Jason asked with a smile.

Casey snapped out of his daydream and looked up at him. "What! Why would you mention her?"

"Because i knew it would make you listen." Jason looked at Matt closely. "You still love her?"

"NO!"

"No, not now you idiot. When she died..."

"Yea of course i did!"

"Who helped you through?" Jason asked with a caring expression on his face. One you never saw on him.

"I can't tell you"

Gabby stormed into the Intelligence office.

"Guys! Call Matt's phone!" She shouted.

"Why?" Jay asked.

"Jason has it! I just remembered! Then you can ping the location right?" She said excitedly.

"Yea!" Antonio said coming into the room. "Why didn't we think of think of this before?!"

Lindsay called Matt's phone.

"Hello?" Jason said.

"Hi, err my name is Erin, i want to ask you, do you know a Matthew Casey?"

"Errrrrrrrrr...Nope sorry wrong person..."

"Is everything ok sir?" She asked.

"Yeah?"

"What's your name?"

"Jason"

Lindsay turned around and mouthed 'We got him' to Voight who smiled and then mouthed back 'We have a location'.

"ok sir...well sorry for the inconvenience." She said then the phone went dead.

"We've got him!" She said.

"Who was that from?" Casey asked.

"None of your business!"

"When are you going to let me go already!"

"Never!" Jason laughed.

"Who is employing you!" Matt demanded.

"Jeff Thomas"

Casey looked up. "Hallie's father?"