A/N: This will be the last update for a while. It'll probably be another week before a new chapter is added.

Please R&R!

Disclaimer, cuz I forgot it on the other chapters: Stargate: SG-1 and NCIS belong to their respective owners.

Chapter III

"They WHAT?!" Jack O'Neill hollered in disbelief.

"They won't release jurisdiction, sir." Mitchell said, taking the phone off his ear slightly, fully expecting a stream of cuss words from the older man. He looked around at the rest of SG-1, all of them sitting at various spots in the hotel room listening to the conversation. Carter and Daniel were smirking and Teal'c had an eyebrow raised. Vala just looked bored.

"What was the name of the agent in question?" Jack asked, trying his best to calm down.

"Leroy Jethro Gibbs, sir." Mitchell said.

Jack sighed. He should have known. That old jarhead had a stubborn streak worse than his own. But it was the same stubborn streak that had saved O'Neill's life and the lives of his men during a fouled – up Black Ops mission. Dammit, I hate it when I owe people favors, Jack thought. "I know the guy and I know he's not going to back down. Alright, fill them in, but tell them NO PRESS and that you're in command, and tell that no good ex jarhead that Jack O'Neill said he no longer owes him a favor."

Mitchell frowned at that last bit. "Uh, sir, if you don't mind me asking, how exactly do you know Agent Gibbs?"

If Jack O'Neill was in the room, Mitchell was sure the man would be glaring at him. "Let's just say he helped me out of a tight spot during my special ops days."

Mitchell immediately understood. "Ah. One of those favors."

"Yep, one of those."

"Alright, sir. I'll break out the paperwork." He hung up the phone. Everyone sat in silence for a minute.

Daniel was the first to speak. "So Jack's letting them in on the biggest secret of the country because he owes Gibbs a favor?" He asked incredulously.

"Indeed" Teal'c responded.

Mitchell glanced around. "Well, I guess we should head back to NCIS headquarters."

With that the group got up and headed to the waiting rental car.

"Don't look now, but I think we've got company." Tony said from his desk as he watched four strangers exit the elevator. His eyes remained fixed on the hot brunette. Ziva elbowed him in his side once she noticed his expression.

"Are we interrupting something?" The brunette asked with a slight accent as the group walked up.

"No, you are not. I was just teaching Agent DiNozzo a lesson." Ziva answered before Tony got the chance. Not that she would have needed to answer quickly, she realized. Tony was busy gawking at the tall, muscled man with the beanie.

"You must have been one hell of a football player in high school." DiNozzo remarked. The man just cocked his head and raised his eyebrows in response.

Mitchell turned to the agent. "Actually he was an actor. Played the bodyguard and bad cop roles." He glared at Vala as she stifled a laugh again. "You three wait here. I'll go talk to the Director. Don't touch anything while I'm gone."

As Mitchell left the room, Vala turned her attention back towards the two NCIS agents. "I don't think we ever were properly introduced. I'm Vala." She said, "And this is Dr. Daniel Jackson and T-Murray." She corrected herself before revealing Teal'c's true identity. Daniel resisted the urge to rub his temples.

"What can we do to help you?" Ziva asked after introducing herself and Tony. McGee was down in the lab with Abby, working with her on the ring imprints in the grass. Gibbs was upstairs talking with the Director and the newcomer.

"Actually, we're here to help you." Mitchell said from the top balcony. "If you'll all come up here for a while, we'll explain."

Ziva and Tony shared a look before heading up the stairs. This should be interesting, Tony thought.

Not long after, Gibbs and his team were gathered in Jenny's office. Each person had a non disclosure agreement in front of them. With a bit of persuasion, Mitchell had been able to get most of the NCIS agents to sign their papers. All but one.

"Why do we have to sign these again?" The black – haired girl with weird tattoos and pigtails asked for the tenth time.

Vala rolled her eyes. "Oh come on, just sign it already. It's worth it." She taunted.

Pigtails looked at the woman on her right. "Where's your accent from?" she asked, hearing Vala speak for the first time.

Vala smirked, sensing an opportunity. "Sign and I'll tell you."

It worked. "Alright, here." Pigtails said, signing the paper. Vala snatched it from her hands and handed it to Mitchell.

The man sitting across the table from Vala stared at his coworker. "You signed a non disclosure agreement to figure out someone's accent?" He asked incredulously.

"It's Abby, what do you expect?" The girl next to him responded.

"Colonel Mitchell, you already know myself and Agent Gibbs. Let me introduce the rest of the team here." Director Sheppard said as she listed off each team member's name.

"Good. Now that everyone's acquainted, can we please get on with this?" Gibbs asked irritably. He had a case to solve and this was taking way too much time.

Mitchell looked at Jackson. "Your turn, Daniel."

"Our story begins with a dig in Giza in 1928..." The archeologist began.

"Egypt?" DiNozzo inquired.

Vala sighed, annoyed. "This'll go so much quicker if you don't interrupt." She said seductively, brushing her foot along his leg. Tony froze, not sure what to say.

"Vala, remember what happened the last time you tried that on someone from Earth?" Mitchell warned.

"What? We're going to be working together; why can't we get a little… friendlier?" She winked at Tony as she spoke.

Gibbs, who was sitting on Tony's other side, slapped the agent upside the head.

"What was that for, Boss?" Tony asked.

"Looking." Gibbs answered before turning back to Jackson. "You were saying?"

Daniel blinked. "Uh yeah. Egypt…"

~+~+~+~+~Two Hours Later~+~+~+~+~+~+~+~

McGee gaped at Teal'c. "So you're an alien?"

"Indeed" Teal'c said.

"And you travel to other planets using a wormhole?"

"Indeed."

McGee turned to Gibbs with the expression of a giddy schoolboy.

"No." Gibbs said automatically. Who knew what would happen if he let McGee do whatever it was he wanted to do? "What does this have to do with our case, other than the marines worked with you?" He asked before the probation officer could argue with him.

Mitchell sighed. "Those burn marks on the bodies were caused by Goa'uld staff weapons."

An awed silence fell over the room. Ziva was the first to gain her composure again. "So there are Goa'uld on Earth?"

Daniel shrugged. "It could be from any number of sources. Rogue NID, the Trust, a minor Goa'uld starting a cult…"

"Or it could be Ba'al." Vala continued casually.

"Who's Ba'al? Someone I should know about?" DiNozzo asked, earning him another Gibbs- slap and an evil glare from Ziva.

"Ba'al is the worst case scenario." Mitchell said, sharing a look with Daniel. "He's the last of the System Lords-"

"And he has at least 15 clones…" Vala interrupted.

"-And he's the most dangerous Goa'uld we've met." Mitchell finished.

"Next to Anubis." Daniel corrected, shuddering. Why me? Mitchell thought.

"What makes this Ba'al so dangerous?" Ducky asked.

Daniel hung his head. "He tortures prisoners to death… slowly… then he brings them back to life in a device called the sarcophagus and he does it all over again… and again."

"Yeah that happened once to General O'Neill." Mitchell put in. "It's amazing the guy's still doin' his job."

Gibbs looked up when he heard Jack's name. "Some things never change." He said sadly.

Mitchell made a mental note to ask the NCIS agent about that later. "Speaking of Jack, he says hi."

Gibbs smirked. "I'm sure that's not all he said."

"He also said that he no longer owes you a favor."

"So he thinks."

"That's what she said", Vala muttered to Tony, earning her a glare from Mitchell.

Jenny cleared her throat. "Gibbs, why don't you take SG-1 to the crime scene? Maybe they can make some sense out of what we found."

"Yeah Jenny." Gibbs said, heading for the door.

"Uh, Boss, it's rush-hour time." Tony started.

"So what, DiNozzo?"

"So it'll take two hours to get down there."

"So what, DiNozzo?"

"So I don't think we should be letting an alien parasite run around our nation's capitol for two hours longer than we have to."

Mitchell smiled. "I can arrange for faster transportation. Colonel Caldwell?" He asked into his radio. "We're ready."

"Understood."

And with a brilliant flash of light, the room was empty.

A/N: Yes, I am evil. I left you at a cliff hanger and I won't update until Monday! MUAHAHAHAHA! Have fun waiting!