They soon found out that Derek was being transferred and picked up John and Cameron and began to trail after him. Cameron went ahead and jumped onto the vehicle, pulling the driver out of his seat. Kat watched this in awe as they went around the front of the van, as she sometimes forgot just how strong Cameron was.

"Get out of the van! Right now!" Sarah shouted, pointing her gun towards the scared passenger who rushed out.

Cameron quickly entered the van and opened the inside door, to reveal a surprised Derek. Kat rushed in after her knowing all hell was about to break loose if she didn't intervene.

"Metal bitch" Derek spat out, as he raised his gun to Cameron, who quickly disarmed him.

"She's on our side…Cameron, back off" Kat advised, as she ushered the girl to take a step back.

"Triple 8. Lose him" Sarah ordered Cameron, passing Cameron a gun.

Kat couldn't help but notice the way that Derek flinched away from Cameron, and shut the door behind her. It was clear how uncomfortable he was having to be around her straight away. As Sarah tried to drive them away, the way Cameron was flinging the Terminator around in the back was causing them to fling from one side of the road to the other. Kat tried to keep her balance by holding onto the back of the seat Derek was sitting on. Soon they were able to turn off from the road, as they all rushed out.

"Let's go!" Sarah insisted, as they saw John stop the car in front of them.

"Where's Cameron?" John questioned, as he jumped out of the vehicle.

"Leave her. Let's go" Derek said, dismissively.

However, John was never going to do this and tried to rush towards the van, but both his mother and Derek held him back. Suddenly Cameron was thrown out of the van and tumbled across the road, as Kat got out her gun.

"Stay back!" Sarah exclaimed, as John continued to try to push past them.

Kat cringed as the terminator climbed on top of the girl and began to punch her repeatedly. Without a second's thought, Kat emptied her mag into the machine, knowing that Cameron could only take so much. She gulped as he turned around and grabbed Cameron's own gun.

"Get down" Sarah cried, as she pushed John to the floor.

Kat made sure to shield both John and Sarah's bodies from the Triple 8, going back to her fundamental mission of protecting them. She looked to her side, unsure whether John's Uncle now needed to be included in that group. Derek looked at the machine head on, knowing that he was it's target. The terminator's gaze scanned over Kat for a moment, as Derek put an arm out protectively in front of her. He didn't need anyone dying for him on his conscience. A moment later, Cameron hit the machine with a large metal pole, but it was too late. The terminator had already pulled the trigger, as a bullet hit Derek in the stomach. He quickly fell to the ground, clutching his stomach, as Kat crouched down beside him. She held his hand over his stomach, trying to apply as much pressure as possible to the wound. She couldn't let John's Uncle die. Not now.

"You're...you're going to be okay" Kat told him, as she tried to stop her own hand from shaking.

Derek turned his head, to fully look at her for perhaps the first time. Taking in her pale skin, long brunette hair and blue eyes that were filled with worry, and put it against the image that he had always had in his mind.

"You're younger than I expected" Derek mumbled, before slipping out of consciousness.

Sarah quickly began trying to shake him awake, as Kat frowned at what he had just said, wondering what he meant. However, she quickly shook this from her mind, knowing it wasn't important at that moment.

"We need to go. Now!" Kat insisted, as she and Sarah helped pull Derek up.

Cameron had quickly and effectively removed the terminator's chip, and they had rushed back to the house, with Derek bleeding in the back seat. Kat tried to keep pressure on the wound as they carried him in, but it was no use, he was bleeding too much.

"Let's get him on the table" Kat suggested, throwing the contents of the table onto the floor.

They helped haul him onto the furniture, as he let out a groan, obviously in a lot of pain. Kat grabbed a few towels and instantly began to re-apply pressure to the wound, but she knew it was no good.

"Do something" Kat pleaded with Cameron, who stopped beside Derek.

"Don't let that thing touch me" Derek growled.

"We have to stop the bleeding" Kat retorted.

"Get away from me!" Derek shouted, trying to sit upright.

"Please don't move. You're increasing your blood loss" Cameron advised.

"She just needs to check your wound. C'mon, she can diagnose you better than any of us and you know it" Kat reasoned with him, as he reluctantly allowed her to do so.

Cameron put her hands over his wound and looked him up and down, observing the damage, her expression as cold as usual.

"I can't fix it" Cameron announced.

"You took a bullet out of me" Sarah stated.

"He has internal damage. He needs medical attention or he's going to die" Cameron explained.

"Can you do something?" Sarah looked to Kat, who sadly shook her head.

She had been looking into going to Nursing school before they had jumped in time, and while she did have some medical knowledge, there was no way she could help in their situation. In response, Sarah ran out of the room and into her bedroom, clearly looking for something.

"There must be something you can do…if we get the equipment…" Kat suggested.

"I'm not a medical professional" Cameron replied, as John rushed out after his mum.

John had rushed out of the house not long after, as Kat guessed that Sarah had told him the truth about who the man was. Kat had tasked Sarah to grab some more clean towels, as the ones they had been using were already soaked through.

"It's going to be okay. You're going to be okay" Kat tried to soothe him, as Derek's breathing got worse.

Suddenly the fast rise and fall of his chest stopped, as Kat gasped and began trying to shake him.

"Derek? Derek?! Sarah, he's not breathing" She called after the woman in the other room, who rushed through.

Sarah looked like she was going to cry for a moment, before a sad look of defeat washed over her face. Kat began desperately performing CPR on the man, hoping to get his heart started again…but she had no idea what they would do after that. A moment later the door burst open, as John stumbled through with a familiar face not far behind. Charley Dixon, Sarah's ex-boyfriend before they had jumped in time was standing there, amazement on his face. He quickly went into action, as he took over the CPR that Kat had been performing. She saw the tears welling up in John's eyes as he knew one of the family he had left could be about to die. She quickly rushed to his side and pulled him into a hug, knowing it must have been awful for him to see. He was still only 15, she thought to herself. She let out a shaky breath, when after a few minutes Derek's heart began to beat again. There was something about the man that she couldn't shake, he was a mystery to her, something that didn't happen very often.

Author's Notes: I hope you all enjoyed this chapter! I've been pleasantly surprised at the response to this story, as I was a little worried this fandom would be completely dead, haha. I've been looking through the other OC stories in this fandom and I've noticed that most of them include the OC being John's biological sister or lover, so I think it should be quite interesting to see how Kat, who is not as vital to the cause, can change the storyline. Please leave a review:)

olischulu: Thank you! I hope you continue with this story:) I didn't think of that while I was re-watching that episode, but now you bring it up, it does sound a little bit weird. I think he's supposed to be about 30, so definitely not a kid anymore haha.

fastandloud: Aw, thank you! I hope you like how this chapter turned out:)

madmikee: Thank you:) Hopefully you'll enjoy the story as it continues to develop!