AN: Ok…. So this is my first fic, so tell me what you think. Dr Who and NCIS...I'm British so i don't know any of the places in DC etc. so feel free to correct me and my spelling and grammar is atrocious.

Sadly I don't own any of the characters except the ones I've made up. It would be a great Christmas present though!

It had been a long week in the bullpen. No new cases just tonnes and tonnes of paperwork, and Special Agent DiNozzo had had just about enough of it. Ziva and McGee were at their desks and Gibbs was on a coffee run AGAIN. All they needed was a bit of excitement. The ding of the elevator signalled the arrival of their boss Special Agent Gibbs. "Grab your gear!" which his team did gratefully.

The crime scene was different. A Petty Officer was found with a big searing burn mark in her chest was lying in a dark alleyway next to a car park. Ducky didn't even have an explanation or even a "This reminds me of..." story for this one.

"What've we got?" Gibbs' voice echoed through the bullpen interrupting Tony's musings, as he rounded the corner and slapped him on the back of the head.

"Not much Boss... Petty Officer Laura Stevenson. Spotless record, good marine, no husband or kids, lived in Maryland. She wasn't on any social networking website, no phone that we know of, and she talks to her parents through letters with no return address." McGee stated gloomily standing up and walking over to the rest of the team next to the plasma.

All of a sudden there was a loud crash, an "OW!" and some hysterical laughter from more than one person.

A tall thin man with messy brown hair in a tweed jacket and a bow tie came out of the stairwell closely followed by a young ginger woman in a mini skirt, a thirty something man with blonde hair in jeans and a woman in a dress, heels and curly golden hair that hung loose framing her face perfectly.

"Are you OK Sweetie?" the woman in the dress said as the bow tied man rubbed his knee franticly.

"Yes, yes fine..." he answered.

This then lead to another set of laughter.

"Hey! Who are you and how did you get in here without a pass?" Gibbs asked. He was annoyed as it was and i didn't need this.

"Oh..." the man said, still rubbing his knee, "I'm the Doctor. And this is River, Amy and Rory." He said mater-of-factly, nodding to each of them in turn.

"And how did you get in?" Tony asked annoyance and curiosity evident in his tone.

"Using this." River said as she reached into his inside pocket. "Scuse me Sweetie..." she said smirking as she pulled out a black wallet with ID inside.

"UNIT?" Ziva chose this moment to join the conversation. She had decided to remain silent up until now.

"Seriously Doctor. Out of all the agenises in the universe you had to pick UNIT." The woman Amy, who was clearly Scottish, said jokingly.

"I'm sure he has his reasons Amy." Rory whispered, hoping that she wouldn't give away the fact that they're not even from UNIT and that two of them aren't even human. Those were set's of questions that he wasn't even prepared to answer.

They all just stood there, mouth agape, when Ducky and Abby walked in.

"Ahh Jethro, I think I may have something on the burn mark that killed our Petty Officer." Ducky said.

"Burn mark? Let me see..." The Doctor said worry and curiosity in his voice.

Autopsy

"Here she is." Ducky announced while standing over the body of the Petty Officer. "You know this actually reminds me of a time in my educational years in Edinburgh medical, when-"

"Duck." Gibbs said obviously not interested in his antics as a student.

"Oh dear." The Doctor said darkly, "This is not good. Not good at all."

"What is it Sweetie?" River asked warily.

"Doctor? What's wrong?" Amy and Rory answered in unison.

"The Silurians."

Fin. Short and sweet! Hope you like it R&R on your way out!