*I do not own Assassins Creed or NCIS*

Hi! This is my first crossover fanfic, so if it's not good, please forgive me. Oh, and I was wondering, in Masyaf, do they speak Hebrew? (For my future reference) if you find this story pleasing, please tell me what you think and anything you might want to see in the future. Now, enough mindless babble, be free! *sets readers free to read*

Chapter 1:

Life in the NCIS office was the same as usual the day the end of the world began. Tony DiNozzo was teasing Timothy McGee and Ziva David was watching with detached amusement and Leroy Jethro Gibbs watching while working on the latest case. Director Vance walked down the stairs, his face as serious as ever. He headed straight to Gibbs and said a few quiet words that no one else could hear. Gibbs' eyebrows raised and he nodded at what the Director was saying. "DiNozzo, McGee! When you're done acting like Probies, we have new case." he called to his agents.

"What about the frozen marine, Boss?"McGee frowned, confused. Gibbs just looked at him. A heartbeat later, McGee nodded, "Got it. New case... I'm going to shut up now."

Gibbs nodded. "Probably a good idea. Get your things, we're heading out." He grabbed his gun and pack and headed to the elevator.

"Gibbs, don't mess this up." Director Vance called after him.

Gibbs turned to give him a small grin. "You can count on me." The rest of the team jogged after him onto the waiting elevator. The doors closed and they headed off to the biggest adventure of their lives

2 hours later-

The car pulled up in front of the small hospital in Coltonville, Maryland, a town off all maps, barely large enough to have two story hospital. Tony stepped out of the small Toyota and looked around doubtfully. "What are we doing here, again?"

"A man is dying and asked for you and David specifically by agent number." Gibbs looked around the small town as he spoke, disappointed by the lack of a coffee shop nearby.

"Agent number? How would he know that?" Ziva asked.

"Beats me. Let's go talk to him. From what the director said, it sounded like he was in bad shape." Gibbs started walking to the hospital, the other 3 close behind him. The moment they walked in, all eyes in the room turned to them.

One of the nurses walked up and smiled. "You must be the NCIS agents that Mr. Auditore has been asking for." DiNozzo's eyebrows shot up at the name, but he didn't say anything. "Everything alright, DiNozzo?" Gibbs asked.

DiNozzo nodded, his patent smile appearing. "Yah, just a name I've heard before. Nothing to worry about." Gibbs nodded, but when Tony glanced over at Ziva he found her still staring at him with a suspicious look. A moment after he noticed the look it disappeared. Without a word she spun around and followed Gibbs and McGee down the hall to the room of the man they were there to see.

When Gibbs and McGee walked into the room, the man frowned. "You are not the agents I wanted."

Gibbs nodded. "I know."

At that moment Ziva and Tony walked in and the man smiled a contented smile. "You may leave. My agents and I have much to discuss." Gibbs and McGee looked completely confused, but Ziva and Tony just looked worried.

"Your agents? Last time I checked, they're my agents." Gibbs said, glaring at the man. The man gestured at the door and Gibbs and McGee walked out, Gibbs grumbling.

The moment the door closed, DiNozzo said "Master, what happened?" the man held up a hand for silence.

"Tony, time is short. Meet Ziva David, Master Assassin." Tony's jaw dropped as Ziva smirked at his ridiculous expression.

"Hello, Novice."

the man smiled thinly at her response, then winced. "Now, down to business. Abstergo has Miles again. They're looking through his memories to see where he hid the Apple before they caught him. They know that I'm dying, and they're coming for you."

"Then why call us here?" Ziva asked. "Surely we would have been safer not coming here."

"You need to know each other as part of the Brotherhood, not just your NCIS team. Now go! The Templars are near. Travel to Masyaf, take your team, assist the Grand Master and Il Mentore in their search for the apple." The man gestured to the door. "Oh, and tell my father goodbye for me." just then a huge explosion rocked the buildings and the windows exploded, spraying glass everywhere. Ziva and Tony sprinted out of the room. They found Gibbs and McGee looking around, confused.

"What happened in there?" Gibbs demanded but tony grabbed his arm without a word and pulled him along as Ziva did the same to McGee.

"We have to get to an airport!" Toby shouted to Ziva as another explosion rocked the building.

"I'll drive. You make sure we don't have a tail! Do you have your hidden blade?" Ziva said, sliding into the driver's seat.

"Hidden- wait, what is going on?" Gibbs shouted.

"We'll explain later. Right now we're busy keeping you safe!" Tony said, and then pulled what looked like a metal arm brace out of his bag. He quickly strapped it on and flexed his wrist and a blade popped out. McGee shouted in surprise and Gibbs' eyes widened. Ziva slammed her foot on the accelerator, eyes narrowed in concentration.

"This is going to be rough!" Ziva shouted just before the car launched over a curb and landed on the next road over. Tony turned in his seat so that he could continuously watch behind them. Only when they were out of the small town heading down country roads toward the nearest city with an airport did they let out the breath that they had been holding.

"Will someone tell me what's going on?" Gibbs demanded, glaring at Ziva and Tony.

Ziva ignored him, instead turning to Tony. "Can you reach into my bag and grab my hidden blade? It's in a hidden pouch at the bottom. And how many throwing knives do you have on you?"

Tony dug in her bag for and pulled out a similar arm brave with a hidden blade. "Here, and I have six, you?"

"ten on me and ten in my bag at all times." Ziva muttered, strapping her hidden blade on with one hand while driving with the other. Gibbs opened his mouth to speak, but Ziva saw the motion and held up a hand, not the one driving, to McGee's relief, to stop his question. "Gibbs, I know you are confused and a little shocked, but if you asked what's going on one more time, you will learn just how good Tony and I are with our knives. Gibbs' mouth snapped shut and he glared at her. McGee's eyes widened and Tony grinned to himself. Ziva kept her eyes on the road but allowed herself a smug smile. Now to get to an airport, and then to Masyaf, home of the Assassin order.

*so that's the first chapter! (avoids tomatoes thrown at her) Please review, it is greatly appreciated! Suggestions are also helpful*