A/N OK here comes the next story off my mad little brain. It is an AU/Sci-Fi Fic. So I hope you will accept that Tim's behavior will be totally OOC in parts.

It is rated M as my bunnies are mental!

Enjoy :)

Disclaimer: (The sensible one!) I do not own this, It belongs to CBS and the awesome writers.

Flipside

Chapter 1

16 years ago.

Admiral and Mrs. McGee turned to the doctor.

"Dr Jacobson, are you sure this will work?" The Admiral asked as he looked through the two-way mirror at the teenager in the padded room.

"Admiral McGee, I can assure you hypnotism has come a long way in recent years and your son is an excellent candidate for this experimental procedure. As we told you if you allow us to continue with this, his participation will be completely confidential. We may never need to call on him again and he will have no memory of any of his visit here." Dr Jacobson looked at the worried parents as she brushed a lock of her brown hair behind her ear.

"So no-one will ever know he was in this program, and we will have our son back unharmed."

"Unharmed, enhanced and improved." She said.

Mrs. McGee looked worried at her husband, "Jack we have to do this, he can't continue as he is, we can't cope as he is now."

The Admiral stood there as every argument ran through his mind, in the end there was only one choice. "How long?" He asked shakily.

"Six months to a year, there will be no visiting allowed, but when you pick him up he will be the son you always wanted." Dr Jacobson.

They both turned there attention to 16 year old Tim McGee who was screaming obscenities and throwing himself at the walls of the room in an effort to injure himself. Two large male orderlies came in the room.

As much as they loved Tim, he had tried to kill Sarah twice, which was why they were here.

"I'm gonna kill you!" Tim screamed launching himself at the two men.

He was still cursing and screaming as the injection he was given took effect and he collapsed unconscious on the floor.

Both Jack and Shelia McGee had tears in their eyes as they looked at the doctor.

"Do it." Jack said simply.

One year later.

Jack and Shelia McGee waited in Dr Jacobson's office.

They had explained to Sarah that Tim was hopefully coming home today and while they were out, she was decorating their home ready for his return with her sitter.

"Mr. & Mrs. McGee good to see you again." Sally Jacobson said warmly.

"How is he?" Shelia asked desperate to see her son.

"He's well, he will be ready soon." She told the worried parents. "He thinks he was in a car accident he has no memories of his past behavior, The Darrington Protocol was a great success. If, however, he ever relapses his violent behavior, we have a code word, which is kaka Quokka you should teach it to your family, this word will instantly incapacitate him until someone from our team arrives and gives him the code word to wake up."

"Code words?" Admiral McGee said, "I thought you said he was cured?"

"He is, the code words are in place more for our usage than anything else. If we ever need to use him, these make his safety assured. Your government thanks you for your co-operation. Now, shall we meet your improved son?" She smiled and pressed a button.

Tim walked up the white corridor of the hospital. He had been here a year and really missed his mother and father, but due to his injuries and the fact that Sarah had needed them, they had not been able to visit.

It had been a long time and he was scared and excited. He lifted his small bag and walked towards Dr. Jacobson's door.

He knocked and stood quietly as he waited to be allowed in.

"Come in Tim." Sally Jacobson called.

He walked in and teared up as he saw his parents.

"Mom? Dad?" He said and flung himself into their arms.

He was confused for a second as they flinched but in an instant, they were hugging him back.

"Tim?" Shelia cried, "How are you feeling now?"

"Much better thank you, there are only a few scars from the accident left now. Dr. J says I can come home…..Can I come home please?" He asked.

They hugged him again and Sheila left with Tim as Jack stayed behind.

"Remember Admiral McGee, This is, He is a government experiment and it is confidential, not a word of this leaves this room. As far as Tim or anyone else knows, he had a car accident in his first car. I will pop over and see him every year on his birthday to keep an eye on him. But I foresee no problems at all with him. He should be able to assimilate back into society seamlessly."

"Yes Ma'am. I won't forget what he is, but I will not have the family told that when you fixed our son, you turned him into a weapon."

He turned his back on the doctor and headed home with his family, knowing that the new and improved Timothy was now going to have a better life, but remembering that the code word had to be taught to Sarah and Sheila as soon as possible. For their own safety.

5-year-old Sarah hugged her 17-year-old brother as he walked in the door.

"Sarah!" Tim smiled and hugged her back, "I missed you, and you need to fill me in on the whole year and on what I missed." He said to her.

"Yay! You are back, I missed you big brother. Come and see what I did to your room. Mom and Dad redecorated for you and I drew pictures." She grabbed his hand and dragged him to his room.

"It was bright and airy, for some reason Tim couldn't remember what his room looked like "its lovely guys thank you." He said.

He placed his bag down on his bed and pulled an envelope out of his bag, "Dad, Dr. J said to give you these, my transcripts for the last year, the private tutors were awesome." Tim smiled. "The tutors said I could apply to college this year. I was wondering, could I go to MIT? Their computer courses are awesome."

"Sure son, after dinner we can look through that prospectus and write out your application." Jack liked this new improved version of his son.

16 years later.

Tim walked into the bullpen at NCIS and looked around.

Gibbs' coffee cup sat on his desk so he was in but there was no sign of Ziva or Tony so Tim sat at his desk and started up his computer.

He rested his fingers on the keyboard and heard sniggering behind him.

"TONY!" He said exasperated as he tried lifting his hand off the keyboard and found he could not.

Tony laughing walked around the corner, "Have a problem McStuck?"

Tim rolled his eyes, reached into his desk, and pulled out the solvent cleaner to get his hand unstuck.

Gibbs could not help but grin as he saw Tim trying not to laugh, "All stuck up Elf lord?" He smiled.

Tim nodded and unglued his hand.

"Gear up." Gibbs called and Tony and Tim headed towards the elevator.

The doors opened and Ziva was standing there.

"Have we got a case?" She asked,

"Yes, a body of a Naval Doctor has been found in Norfolk." Gibbs said. "Ziva, you gas the truck and meet us out front."

As they arrived at Norfolk, the police had cordoned off the scene.

"What have we got?" Gibbs asked.

"52 year old Dr. Sally Jacobson. She has had her throat cut, we had a report that her office had been ransacked and found her in her car out the back here."

Tim and Tony bickering caught up with Gibbs, "McGee bag and tag, DiNozzo Photos and sketches, Ziva I need you to check out the office and find her secretary, see if anything is missing." He ordered.

"On it Boss," They said and moved out.

Tim and Tony walked up to the body, "Nasty way to go that." Tony said

Tim looked up about to say something and stopped, "Dr, J?" he said and dropped the bag he was holding.