"What the hell is going on?" Jack roared as the replicators made their way towards them. Barely bothering to aim his P-90 he began to shoot. The other three were not too far behind him.

The replicators however, didn't seem to notice they were being shot at. They were no angrier, as replicators were prone to be when attacked, nor did they change their course at all.

"It's not working!" Carter cried over the noise of the rapid fire. Not a single replicator had been taken down.

"Carter?" Jack yelled.

"I don't know what's going on, sir," Carter shouted, fighting to be heard over the gunshots. "They're not being hit!"

"Fold back!" Jack cried and SG-1 retreated further into the forest, away from the swarm of replicators.

"What the hell was that?" Jack asked, once they were sure they had gained some distance from the replicators.

"I don't know, sir," said Carter, puffing. "Our bullets were going right through them." Her breathing was shallow and she had begun to turn green again.

"That's impossible," said Daniel. "How can they be immune to guns?"

"Colonel Carter is correct, Daniel Jackson," Teal'c said. "Our projectile weapons appear to be ineffective."

"That's just not possible," Sam argued. "How could they make themselves untouchable?"

"They made themselves immune from the disruptor, didn't they?" Jack asked.

"Yes, but sir, that's different," Sam argued.

"It would explain a lot though," Daniel mused.

"What?" asked Jack

"Well, it explains how Oz got here," said Daniel, looking knowingly at Sam,

"Oh my god," she said. "My double."

Daniel nodded.

"That would explain everything; how the story of Oz got to be here, why they were waiting for the four of us, how they knew General O'Neill could power Ancient weaponry…"

"She wouldn't have cared about Rini getting hurt either. Or that woman in the gate."

"Yeah, but why the charade?" asked Jack. "If she wanted to kill us, why doesn't she just kill us?"

"Because she wants the challenge. The game. She wants to watch us figure it all out."

"However, this does not explain how these replicators have become invincible," said Teal'c.

"True," Sam replied. "That just doesn't make sense."

"Hey…Repli…Carter!" yelled Jack to nothing in particular. "We know you're out there! Get your metal ass down here and tell us what the hell's going on!"

"Do you really think that's going to work sir?" asked Sam, disbelievingly.

"RepliCarter?" Daniel seconded.

Jack shrugged. "It has a certain ring to it, don't you think? RepliCarter…"

"Colonel Carter," Teal'c announced. "I believe the replicators are heading this way."

"Here we go again," sighed Jack.

"What are we going to do?" asked Daniel.

Sam shook her head. "I have no idea!"

SG-1 took up evasive positions behind trees as the replicator army approached. Sam shot a round towards them. Not a single replicator moved out of line.

"Damn," she yelled. "It's like they don't even know we're here!"

"Just shoot!" overrode Jack and began madly firing his weapon. SG-1 followed suit.

"Not working, sir!" Sam yelled.

"Keep shooting!" he cried, not knowing anything else to do.

The completely one-sided battle continued for several minutes before Sam keeled over.

"Colonel Carter!" Teal'c yelled, being the first to notice her drop.

"Man down!" Jack called out. He had to get to her. "Cease fire!" he called again. Their shooting wasn't doing any good, anyway.

"Carter," he cried hoarsely, once he had gotten to her. "Carter!" he yelled again when she didn't stir. He checked her pulse. It was regular, but weaker than before. He slapped her lightly on the face. "Come on, Colonel!" he growled.

"How is she?" Daniel asked, racing towards them.

"Out cold again," Jack answered. He ripped open her vest, looking for any trace of a wound. There was none. "Carter!" he yelled. "Open your eyes, that's an order!"

Daniel opened his canteen and poured water on her face. Still nothing.

Teal'c stood in front of them all, watching the replicators as they passed. Not a single bug seemed to notice they were there, let alone that they were trying to kill them. Teal'c raised an eyebrow. He shot his P-90 right at the nearest replicator. The bullets flew straight through it and into the ground. With a quick look towards Colonel Carter, he left the group and approached the replicators.

"Carter!" Jack yelled again.

"Jack, I don't think she's going to wake up this time."

"Daniel, don't!" Jack roared and bent over Sam so that his face was inches away from hers.

"Wake up, Colonel," Jack said quietly into her ear. 'You're just asleep. Wake up!"

Nothing.

"Sam, wake up," he tried again, "Samantha!"

"Sir?" came a soft voice from beneath him.

"Carter?" he whispered back, hoarsely.

Sam opened her eyes and looked up at him. "Not again?" she asked, with an attempt at a smile. The movement made her feel violently ill and she vomited onto the ground, next to her. "Sorry sir," she said, closing her eyes again.

"Carter!" Jack called out. "Don't go back to sleep! Carter!"

"Too tired, sir," she answered. Her head began to swim and she lost consciousness again.

There were colours around her. More colours than she even knew existed. She was lying on the yellow brick road, the red from her slippers almost blinding her with brightness. The Scarecrow came around a corner that wasn't there before, followed by the Tinman and the Lion. They were singing to her, but she couldn't quite make out the words.

The sky grew dark and she could see a small figure flying towards her. Her replicator double jumped gracefully off a broomstick, landing by her side. She smiled.

"Wake up Carter!" the Scarecrow said, his voice pounding in her ears. "Sam!" he yelled.

The replicator pushed him out of the road and stood face to face with her. "I'll get you, my pretty; and your little dog too," she said with a grin. Her hand moulded into metallic form and she thrust it into Sam's head. She cried out in pain, but found she had no voice. All she could hear was her replicator double, taunting her for her stupidity, and the booming voice of the Scarecrow in her head. Carter, Carter!, it yelled.

There was a loud blast and Sam was back in the forest, sweat dripping down her face. She was shivering uncontrollably and she vomited again. She heard General O'Neill soothing her, his voice soft in her ear, before he yelled to Teal'c, asking him what the hell just happened.

Because, suddenly, everything was quiet again.

Sam ignored her nausea and sat up to look around.

The replicators were gone.

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