Sam was on her way down the corridor when she felt the city start to shake. That was not good. If the Replicators had repaired the stardrive and were able to take off before they were finished with the plan, it might not work.

She was almost to the third shield emitter room, where she hoped to meet up with Beckett and Teyla, when both of them ran out.

"Change of plans," Teyla explained. "John wants us to go to the Chair room and use drones to stop the city from taking off."

"I still think this is a bad idea," Beckett said as they ran towards the room. "I'm just as likely to blow the entire place up as stop the city from leaving the planet by firing on the stardrive."

Sam remembered hearing about Beckett's attempts at using the chair in Antarctica and how he almost accidentally shot down the helicopter that John Sheppard was piloting to bring Jack to the outpost. No wonder Beckett was worried about his abilities.

"You can do it," she told him.

He had to do it. They had no other choice.

"Here, take this."

Beckett handed over his ARG. They all knew that it would be more useful if Sam was the one holding it. She clipped her P90 to her vest when Beckett declined the weapon, saying that he was more likely to get himself injured than hurt any Replicators with it.

Teyla looked over at Sam. "Were you able to send the message?"

"Yes, but I'm not sure if they got it. And, unfortunately, I discovered that we don't have much leeway. They're a little over an hour away."

No briefing was worth a damn without good intelligence, so Sam kept wondering what had caused the disconnect with the information the Atlantis team had been provided with. They should have had a lot more time.

All three of them paused when they reached the end of the corridor around the corner from the Chair room.

"Then we need to make sure we succeed," Teyla whispered as she adjusted her ARG in preparation to take out the guards that were sure to be in the room.

"I just wish we weren't cutting it so close," Sam said as she got her ARG in the ready position. "I'm ninety five percent sure they'll get the data burst I sent, but whether they know what it is and are able to decrypt it in time is a whole other question."

Outside of the Chair room, Sam looked at Teyla.

"I'll take right, you take left."

Teyla nodded and they entered the room. Sam quickly clocked the four Replicators and shot at the two on the right while Teyla did the same on the left. All four Replicators dissolved into a pile of blocks.

"Clear," Teyla called.

Beckett entered the room and headed for the Chair.

"Thank you dears."

"Hurry," Teyla prompted.

Beckett sat down in the Chair and activated it.

"I really don't think I'm the best person to be doing this," he said.

Sam almost laughed. No one thought that Carson Beckett was the best person to be doing this.

"Well, you're the only option we've got."

She tried to give him an encouraging look, but it didn't seem to work.

"I almost killed General O'Neill and Colonel Sheppard last time I sat in one of these weapons chairs," the doctor admitted.

"Yeah," Sam replied, "You should try very hard not to do that this time."

Sheppard really should work on getting Beckett more comfortable with the Ancient weapons systems. If it happened twice already, there would probably be a third time he ended up in that Chair.

Teyla glanced at Beckett in sympathy. "You will be fine, Carson."

He nodded and laid back in the Chair. Sam watched as he pulled up the weapons system display.

"Think about the stardrive," Sam advised. "Then send as many drones towards it as you can."

Part of her mourned the loss of that spectacular piece of technology, but a larger part knew that destroying it was the only way for all of them to survive this.

They needed to be here in order for the Daedalus to be a threat. They also needed to buy time for Sheppard, McKay, Ronon, and Weir in case they had additional emitters to place. Ronon and Weir's emitters had been furthest from the jumper bay. And Sheppard and McKay stopped by the brig to feed false information to Jack and Woolsey before working on their emitters.

Sam really hoped that Jack was okay. She knew exactly how bad it could get when Replicators set out to torture you.

She saw movement on the display and then nearly lost her footing when one of the drones made contact with the nearby stardrive.

"Again," she said.

The room shook.

"Again."

Sam would make sure Beckett kept this up until the Replicators arrived to capture them. They needed to make sure the stardrive was out of commission and they had to create enough of a distraction to make sure the others could get the final emitters in place.

"Again."