Fast Forward

Summary: Five years after the Goa'uld were defeated and the SGC shut down, SG-1 are called back to duty to fight one last battle…

Pairings: Sam & Jack

Spoilers: Everything that's aired on US television so far…

Disclaimer: Stargate SG-1 & its characters and ideas do not belong to me, I'm just borrowing 'em for a fan fic!

A/N: Hey guys! This is an idea I've had for AGES but never really gotten around to writing! So here I go…this is for Grace for being a great friend :D

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Prologue

The large room stood empty, no one ever went down there anymore. Once the base had been full of life, now it was simply a weapon-testing facility. No one used to lower sub-levels.

"Ow, watch it."

The young cadet glared at his friend.

"Sorry," he replied.

"What do you think they used this place for?"

"I dunno, Josh, you're being so careful it's gonna take us all day to get through this place, and we only have an hour or so before they realise we're missing and come looking for us," the first cadet said.

Josh rolled his eyes. "They won't notice us missing, there's like eighty of us here…it was stupid of them to bring us to a top-secret facility and not expect us to check it out."

"Michael, Josh!"

They both stopped and turned around.

"What's she doing here?" Josh asked.

"I dunno," Michael mumbled. "Hey Elise."

"What're you guys doing?" she asked.

"Just, looking around," Michael muttered. "What're you doing?"

"Just looking around," she grinned at them. "Let's check out this room."

She jogged up the staircase into the room. Michael and Josh shared a look before following her up the stairs into the unknown room.

Everything in the room was covered in white sheets.

"Uh…weird," Josh said.

"Wonder what its all for…" Elise pulled one of the sheets off, revealing some kind of control panel. "Wicked!"

Michael reached forward and touched the surface. Suddenly everything activated, he pulled back.

"Whoa! I did not touch anything!" he said.

"Yes you did you idiot," Josh said, then he pressed another button. "Wonder what this does."

The screen in front of the window began to lift. After a few moments alarms started whirring.

"Whoops…" Josh said.

"Lets get out of here!" Elise said, running towards the door.

The other two didn't follow, they were both staring ahead out the window.

"Guys! Come on!" Elise said.

"Whoa…" Michael let out.

"What?" Elise moved towards them again.

Suddenly a blue, water-like light spread over the room they were standing in. She looked out the window and gasped. There was some kind of giant puddle sitting against the back wall of the room.

"What is that?" she asked.

"I don't know," Josh said.

Suddenly a small grey figured appeared out of the puddle of water. They all jumped.

"Uh…should we run?" Elise asked.

"I don't think so," Michael said.

"Let's talk to it," Josh said, running out of the control room and into the room in front of them.

Elise and Michael jogged after him. They came into the room below just as the puddle of water disappeared, leaving only the stone ring outline.

"Where is General O'Neill?" the small creature asked.

"It talks!" Michael said in shock.

"I must speak with General O'Neill immediately," the creature said. "It is important."

"General O'Neill…" Josh looked at Michael. "He's retired, he came to talk to us about the Air Force…"

"Earth is in danger…" the creature said. "I must speak with General O'Neill or Colonel Carter."

OoO

Ex-Lt Colonel Samantha Shanahan looked up at the class in front of her. "So was there any of that that anyone didn't understand?"

A kid in the front row raised his hand. "Yeah…what's the difference between net Force and just plain Force? Cos they equal the same thing right?"

"Force equals mass times acceleration is when the force is only being applied from one direction, whereas when it's the net Force that equals mass times acceleartion there are forces acting from both directions…get me?" Sam said.

"Not really…" the kid said, ruffling his hair and putting his cap back on, backwards.

The girl next to him leaned over and started to draw something on his book. Sam smiled, Alex Shaw, the smartest girl in her 11th Grade Physics class, seemed to always be explaining things to Tom Prince.

She felt a pang of familiarity as she watched the two of them for a moment, remembering how she'd always had to explain everything to Jack, and as many times as she had he'd never understood.

"Open your text books to page 94, and completely questions 1 to 10," Sam said, sitting down at her desk. "Lets see how much you can get done before the bell rings."

She looked at her watch, only five more minutes and it would be lunchtime. She needed a break, she'd been up till three that morning trying to get her four-year-old to go to sleep. Ever since Pete's accident her son had refused to go to sleep. He wanted his daddy to tell him a goodnight story, he didn't seem to understand that was impossible. Pete was in hospital, in a coma.

Sam sighed and opened up her text book, searching for something she could teach her class next lesson.

She sensed a hand waving around in the air and looked up. "Yes Alex?"

"I already did these," she said. "Can I go?"

Sam looked confused. "When did you do them?"

"Last night…I got bored," Alex said.

"Just, sit there till the end of class…do some extra work," Sam winked at her.

Alex pulled a face but then smiled. "OK…"

The door squeaked open and Sam looked up.

Jack

She stared at the figure in the doorway in complete surprise. What was he doing there? She hadn't seen him, well she hadn't seen him since her wedding with Pete. It had seemed strange to remain friends with him after that…

If that's what they'd ever been…

"Uh…can I come in?" he asked, looking cautiously at the room full of teenagers who were staring at him.

"Uh, sure…sir," she said.

She saw the class reaction out of the corner of her eye. None of them knew she was ex-military, she liked to keep that a secret from her students, it stopped a lot of questions.

"Is class almost over?" Jack asked.

As if on queue the bell rung and all the students grabbed their books and headed for the door.

"I want those questions by tomorrow," Sam shouted after them.

There were a few mumbles.

Sam turned to her ex-CO. "So…General…"

"I'm retired Carter, and so are you…lose the formalities," he said.

"OK…Jack…why are you here?" she asked, staring him in the eye for the first time in four and a half years.

"I got a message…from an old friend," Jack looked cautiously at Alex, who was taking a suspiciously long time to clear her books from her desk.

Sam narrowed her eyes and looked at him. "An old friend…as in…"

"A little…smart…grey…guy," Jack said.

"Oh, that old friend," Sam said. "Good news?"

"Not exactly…" Jack said. "The threat we thought was gone…apparently it's not…"

"What?" Sam looked at him. "We…"

She stopped and turned to Alex.

"Alex, we really need some time alone…" Sam said.

"I need to talk to you," she said.

"Later," Sam said, nodding at the door.

Alex nodded and walked out, slowly.

After she'd gone and the door shut behind her Sam turned back to Jack.

"We destroyed the Goa'uld, there was no question about it…" Sam said.

"Apparently there was," Jack said. "A group of Goa'uld, under the rule of Atum…" Jack pulled a face, "I think that's his name…they were apparently so far out on the edge of our galaxy that they were never really a part of the Goa'uld system lords as we know it…"

Jack looked confused. "Daniel explains this all much better…"

"You've contacted Daniel…" it was a statement, not a question.

"Yeah, apparently he's been busy…lecturing at a university," Jack said. "Actually, I never really pegged you for the high school teacher."

"Well, I needed a job that gave me enough time to be home with Jonathan," Sam said.

"Jonathan?" Jack repeated.

Sam looked up at him. Shit why did she use her son's name? She'd named him after Jack, but called him Jonathan so Pete would never know. She was sure he had, but he'd never said anything about it. The look in Jack's eyes hit home hard. She'd forgotten her feelings for him, exactly how powerful they had been, and here, watching the emotions play out in his eyes as he learnt that she'd named her son after him, she felt her own feelings resurfacing.

She breathed in sharply. "So, why exactly are you here telling me this?"

"I want to reassembly SG-1," he said.

"Just…SG-1," she asked.

"Well…it's a start," he said, shrugging slightly.

She door creaked open and Alex poked her head around.

"Mrs Shanahan…"

"I'm leaving," Jack said, turning around and heading to the door. "O'Malley's tonight."

"Yes, sir," Sam replied.

He looked at her. "No 'sir', Carter."

"If we're being recalled then I believe we're back to that, General," Sam said.

Jack nodded slightly. "Right…"

He turned around and left without another word. She felt he was still sour over the whole Pete thing. Sam sat down and sighed heavily.

"Is this a bad time?" Alex asked. "I was just gonna tell you it wasn't important and never mind…"

"It's fine, sit down," Sam said.

Alex sat on the edge of Sam's desk. "Recalled? To what?"

"The Air Force," Sam replied, looking at her student.

Alex raised both her eyebrows in surprise. "Really? You were in the Air Force? And that guy…"

"My ex-CO," Sam replied.

"Wow," Alex said. "That's cool…what did you do?"

"Astrophysicist…" Sam replied.

"What's the Air Force need an astrophysicist for?" Alex asked.

"Deep space radar telemetry," Sam responded automatically.

"You're being recalled to duty by an old friend who told your ex-CO that the threat you thought was gone isn't…and you worked in deep space radar telemetry?" Alex sounded disbelieving.

"Look Alex, I can't discuss it," Sam said.

Alex nodded. "I get it…classified right?"

Sam nodded in reply.

"I'm gonna go…" Alex stood up.

"Hey, Alex…what're you planning to do after you finish school?" Sam asked.

"Astrophysics," the girl grinned. "Maybe I'll join the USAF…"

Sam stared at her as she left.

Now what had she gotten herself into? She thought the SGC, that part of her life, was over. She was supposed to have settled down, started a family with a loving husband. So much for that. She had a husband who was a vegetable on a hospital bed and a son who refused to sleep, now Jack was suddenly back in her life, asking her to help save the world.

Life never was that simple…

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A/N: Watcha think so far!? Please review!!