Disclaimer: I do not own Stargate or Mass Effect.

Stargate: Mass Effect

Chapter4: Fall of the Machines

March 23rd 2004
Sol System
In orbit above Earth
Asgard Science Vessel / Daniel Jackson
Main Bridge

The space above the planet tore open as the hyperspace window stretched open and deposited the cruiser-sized science vessel into normal space. The Daniel Jackson was armed as any Asgard vessel was but nowhere near the firepower of the new O'Neill-class battleships they currently employed in their forces.

Nearby three of the Terran warships that detected the Asgard vessel turned to face this newcomer and Thor couldn't help but admire what the Terrans had done with their recent findings. He quickly scanned the ships and was slightly surprised at the technology being employed on them. It was old Alteran technology to be sure compared to their more 'modern' technology but it was still a vast improvement from the original technological level of Earth and her people.

It even used Nuetronium which the Alterans employed even before the first zero-point energy modules were invented. The Terrans warships even employed old Alteran energy and kinetic weapons before the first plasma drone was created. His scans also showed that the system's mass relay had been excavated and if his long range sensors were working correctly then the three relays in the neighbouring Arcturus System were starting to thaw themselves out of their own icy prisons.

Judging from his scans the Terran cruisers were an even match for two Ha'taks in a head-on confrontation but it would take several ships to take on even the old Baliskirnir-class Asgard battleships. Still he wouldn't try to take the technology away from them; they had proven themselves worthy of it on numerous occasions, not the least of which was when they fought and defeated Anubis.

"It would seem that they are well on their way to becoming the Fifth Race," Thor mused.

"Indeed," Teal'c agreed.

"We are being hailed," Thor said as the image of the Terran ship's commander appeared onscreen.

"This is Colonel Steven Caldwell of the Terran Systems Alliance cruiser Daedalus to alien vessel. You have entered Terran Space, identify yourself and your intensions," the man spoke clearly.

"I am Supreme Commander Thor of the Asgard High Council," the Asgard leader stated. "I have Teal'c aboard...we are here for Colonel O'Neill."

"Understood," Caldwell nodded in response. "We've been expecting you...where is Major Carter? I was told she was sent with Teal'c to make contact with you?"

Thor took a moment before answering, "I am afraid the situation has changed. Major Carter has been captured by the Replicators and we are in need of assistance."

"What do you need?" Caldwell inquired.

"Doctor Jackson and Colonel O'Neill is all we require at this time," Thor replied curtly and scanned the planet for the correct life signs.

"We're here if you need anything," Caldwell concluded before the screen flickered off.

"Do you have a lock on Doctor Jackson and Colonel O'Neill?" Teal'c inquired.

"Yes," Thor replied before a Daniel appeared in a column of light. He looked around for a moment before shrugging and went back to sipping the cup of coffee in his hand.

"Hey guys, what's up?" Daniel asked seemingly unconcerned that he had just been teleported aboard an alien spaceship.

"The Asgard homeworld of Orilla is in danger of being attacked by the Replicators," Thor stated clearly. "We have come here to seek a solution to that problem and save Colonel O'Neill's life."

"Okay...where's Sam?" Daniel asked after a moment.

"She was captured by the Replicators," Teal'c responded. "The ship she was on was destroyed however there is a chance that she still lives."

"So...what are we going to do?" Daniel asked the question.

Just then Colonel Jack O'Neill appeared in the nearby storage pod in a column of light having been teleported from Alteran outpost on Earth.

"I'm going to merge his mind with the ship's computer in order to access the knowledge stored there," Thor explained.

"Okay..." Daniel said with a nod.

"Hello? Hello? Testing...testing...one...two...three," Jack's voice echoed through the ships internal comm.

"Jack?" Daniel asked.

"Daniel?" Jack responded in kind. "What's going on?"

"You're mind is interfaced with the Daniel Jackson, Colonel O'Neill," Thor explained.

"What?" Jack asked in alarm.

"The ship we are on is named the Daniel Jackson," Teal'c responded.

"Well...okay...why am connected to it exactly?" Jack inquired hopefully.

"We require the Ancient knowledge stored in your mind in order to develop the means to defeat the Replicators that are currently on course for the Asgard homeworld of Orilla. I am allowing you access to the ship's log now," Thor explained as he moved one of the stone on the consol.

"...Damn," Jack said finally.

"Jack?" Daniel questioned.

"It's fine Daniel just that I'm surprised that the world didn't end when the Stargate went public," Jack responded.

"Well the fleet in orbit helps calm the masses down knowing we can defend ourselves now," Daniel sighed in understanding.

"I must say Doctor Jackson, I am surprised you haven't contacted us about the Alteran technology cache on Mars or the fact that you dug out the Charon Mass Relay in orbit of Pluto," Thor spoke up.

"Well we didn't want anyone to know, just in case the Goa'uld somehow got a hold of that knowledge," Daniel explained. "A fact that was proven true when Anubis found out we accessed an Ancient repository on P3X-439 and launched an attack on Earth two weeks ago." He turned to look at the Asgard Supreme Commander, "you knew about the Mass Relays?"

"Yes I did," Thor nodded in confirmation. "After the Alterans left the galaxy the Asgard froze and buried the entire relay network including the intergalactic relay known as the Citadel."

"What's the Citadel?" Daniel inquired.

"An Alteran space station-mass relay hybrid many times the size of a normal relay capable of intergalactic travel," Thor explained. "It was abandoned when the Alterans left the galaxy and is located in the Serpent Nebula where it has remained ever since the war with a race known as the Reapers." Before anything could be said he continued, "I am breaking orbit now and setting a course for Orilla."

Silently in the vacuum of space, the Daniel Jackson's engines came to life and eased the science vessel out of the planet's gravity well. A second later the space in front of it tore open in a cloud-like vortex allowing the Asgard ship to jump far beyond subspace and into hyperspace.

"Why did you bury the Mass Relays?" Daniel asked.

"Because anyone able to acquire access to them would accelerate their development at an incredible rate," Thor explained. "It would have interfered in the natural development of civilizations across this galaxy and the Asgard couldn't allow that. The Goa'uld for example reengineered Alteran technology and are now a galactic menace. We couldn't take the risk that other species would acquire Alteran technology and use it to conquer other worlds."

"So why haven't you stopped us?" Daniel asked curiously. "Why haven't you stopped Earth from using the technology attained from the Mass Effect?"

"...Because you are well on your way to becoming the Fifth Race," Thor answered honestly. "Many years ago I asked that Colonel O'Neill stop the members of your government who were stealing technology from us. He did so without question not because we asked him, but because it was the right thing to do. He could have easily just left it as it was and at the most we would have cut ties with Earth but he stopped them and returned the stolen technology knowing that Earth wouldn't be able to acquire the technology again unless we said so."

"I see," Daniel nodded in understanding.

"In human terms...I trust you."

"We must revive him," Thor said almost worriedly as Jack's life signs began to redline.

"No not yet," Jack urged as his hologram disappeared.

Thor activated fast and opened the pod after shutting down the power and purging the Alteran knowledge from Jack's mind. All was silent until Jack gave out an echoing groan of pain.

"Oh man, what a headache," Jack groaned as he rolled over on his side in the pod.

"Jack," Daniel spoke as he and Teal'c helped the Colonel back to his feet. "Take it easy, you've been through a lot over the last two weeks."

"What?" Jack asked confused.

"What's the last thing you remember?" Daniel asked him.

"Getting my head sucked by one of those damned ancient head… suckers. And something about twins," Jack replied slightly dazed.

"He's fine," Daniel said with a sigh of relief.

"Teal'c, what's with the hair?" Jack asked taking notice of the Jaffa warrior's new hairstyle.

"O'Neill, you should feel better momentarily and your memory should return shortly," Thor spoke from the consol.

"Okay whatever, and Teal'c, what's with the hair?" Jack asked turning his attention back to the Jaffa.

Teal'c merely raised his eyebrow at his question, "the situation has changed O'Neill."

"The specifications for the device you just created remain in the computer," Thor spoke. "I believe I can synthesize it," he added before as a device materialized on the nearby pedestal.

Jack took one look at it and said, "Sweet. What is it?"

"We have no idea but you built it," Daniel responded.

"No I didn't," Jack countered as he looked from the device to Daniel.

"Yes you did, while you were linked to the computer," Daniel shot back.

"Well whatever it is, I don't remember making it or what it does," Jack responded.

"It was doubtful that he would retain the knowledge," Thor stated in understanding.

"Alright, let me have a look," Jack as he approached the device. He tapped a few times before he shrugged, "yeah, I got nothing."

The main monitor suddenly flickered on to show the image of another Asgard whom Thor instantly recognised. "Penegal, I am relieved that you are still in a position to communicate," the Asgard Supreme Commander declared.

"It will not last long; were you able to procure a means of fighting the Replicators?" Penegal asked.

"Possibly; it will require more research before I can attempt to use the device," Thor replied honestly.

"Thor, you should be aware; the Replicators infesting the colony are behaving in an organized manor unlike anything we've experienced before," Penegal informed.

"Perhaps they are being controlled by a human form leader that has yet to reveal itself," Thor mused.

"What about Sam?" Daniel asked. "Have you detected any human life signs on the planet?"

"No, the only life signs are those of our people fleeing," Penegal responded.

"Well she can't be dead just like that," Jack quipped.

"The replicators could be shielding her life signs O'Neill," Teal'c suggested as the screen suddenly went hazy and flickered off.

"We have lost the transmission," Thor said warily. He turned to the device constructed from Alteran knowledge a moment later, "we must determine what this device does quickly."

"Jack please tell me you know what this thing is?" Daniel asked.

"I don't know okay?" Jack shot back. "Do you really think I'd just stand by when Carter or any other member of this team is captured when I could do something about it? I have no idea what it is; for all I know it could be an Ancient hamburger maker."

"We are receiving a transmission," Thor interrupted as the monitor flickered back on to display another Asgard.

"Thor, this is Commander Aegir of the Valhalla. We have lost contact with the surface," spoke the Asgard on screen.

"Aegir, communications have been terminated. What have you to report?" Thor inquired.

"We have located what appears to be the remains of a human form Replicator floating amongst the debris of the Replicator ship. Somehow they must have survived the destruction of their vessel and have since become inactive. I am transmitting their coordinates; use caution Thor. Our people cannot afford to lose you," Aegir explained.

"Understood, Daniel Jackson out," Thor nodded in understanding and cut the transmission.

"Okay, what are you doing now?" Jack inquired.

"I am going to transport the replicator aboard; though it is dangerous we must have access to it in order to gain intelligence on the human form leading this attack," Thor explained before he beamed a human-looking man into one of the nearby pods.

"Anyone recognize him?" Daniel asked.

"Nope," Jack responded as Teal'c handed him a P90.

"I do not," Teal'c added as he readied his own weapon.

"Is it dead?" Jack asked as he slowly stepped towards the pod.

"Not entirely," Thor answered making Jack back away a little. "All Replicators are linked through a sophisticated subspace communications network; we can use these machines to access that network through multiple points of ingress, increasing our chances of finding their leader."

"And if he wakes up is this pod going to hold him?" Jack asked the obvious question.

"...Probably not," Thor admitted after a moment. "Though this will increase the chances of containment in that event," he said as he encased the pod in a energy field. "I have access to the network," Thor stated as he brought up a screen of static on the monitor. "I am searching for any references to humans or human forms now," the screen fizzled again and displayed the image of a woman held against a wall.

"Carter," Jack muttered when he saw the image.

"Can you find her?" Daniel asked.

"She is within a small structure on the planet's surface, nearly a hundred kilometers from the edge of the colony near the impact site of an asteroid rich in neutronium," Thor replied.

The screen suddenly flickered and died as the pod began to glow.

"Oh crap," Jack gritted out as the lights on the pod failed.

"The Replicator appears to be reactivating and the containment field is failing. I cannot re-establish the field," Thor said warily.

Suddenly the damage on the Replicator was repaired instantly and its eyes opened. He turned his head towards them and sent them what registered as a glare.

"Beam it out now!" Jack shouted as he and the others brought their weapons to bear on the Replicator.

"Transporting now," Thor spoke as a column of light encased the Replicator however he did not disappear like they thought he would. "It is somehow blocking my efforts."

A second later the column of light dissipated and the Replicator punched the through the cover of the pod. He climbed out a moment later as the three members of SG1 opened fire, riddling the Replicator's body with bullets. They stopped shooting a few seconds later and the Replicator quickly repaired itself.

"Thor buddy, a little help here!" Jack said worriedly as the Replicator charged towards them.

Teal'c jumped in front of it and made to grab it. The Replicator was faster however and quickly delivered a punch to the Jaffa warrior's stomach, sending him flying across the room. Daniel raised his P90 and fired, send a full clip into the mechanical monstrosity however it repaired the damage it sustained within moments. He quickly reloaded and continued firing, hoping to at least slow it down long enough for someone to come up with a plan.

Jack looked over at the device he had constructed earlier and quickly grabbed it. He inserted his hand into the hole in the 'back' of the device and raised its cross-shaped 'front' to the Replicator. He squeezed the trigger inside the device and a wave of energy shot out of the 'front' of it. The wave washed over the Replicator and it dissolved within moments, becoming nothing more than a pile of nanites on the floor.

"What the hell just happened?" Daniel blinked before turning to the Colonel. "Jack?" he asked.

"I don't know I just picked it up and fired," Jack said defensively.

"It seems that the device has permanently disrupted the internal mechanics of the nanites, rendering them useless," Thor commented.

"Can Jack's weapon be adapted into a planet-wide weapon?" Daniel asked as Teal'c made sure that the Replicator wouldn't be repairing itself this time.

"I believe so...I can modify the ship's shield generators to project a similar energy wave now that I know what it does," Thor mused.

"Good, in the meantime we'll head down to the surface and rescue Carter," Jack spoke up as he examined the new weapon.

"I cannot transport you inside the Replicator structure," Thor stated. "They have countermeasures in place to prevent that; however I can however get you close."

"Alright...one last thing before we go Thor," Jack said as the team stood together. "If you think the weapon can destroy the Replicators once and for all then do it even if we're still in the structure understood?"

"...I understand O'Neill," Thor nodded in acceptance.

"Alright then...energise," Jack quipped and Daniel groaned at the phrase just before they were surrounded in columns of light.

March 24th 2004
Asgard Home System
Orilla
Near Asgard Colony 4-B / Near Replicator Structure
Forest

"Die you stupid bugs!" Jack exclaimed as he fired the disruptor on the hoard of Replicators.

"Sam?" Daniel shouted hoping that she could hear them.

"Major Carter?" Teal'c shouted also as he fired his shotgun into a rather large techno-bug.

"Stop!" shouted a new voice. The three quickly turned and caught sight of a Replicator they knew very well. "If you harm me or any more of my brethren I assure you that Major Carter will die instantly," Fifth said clearly.

The three members of SG1 shared a look before they resumed firing on the legions of Replicators including Fifth who was destroyed after being shot by Jack's disruptor.

"This way!" Teal'c called as he dashed towards the Replicator structure.

"SG1 this is Thor," came the Asgard's voice through their headsets. "The weapon is charged and ready to fire on your command," the three stopped and looked at each other again.

"...Fire the weapon Thor," Jack gave the order.

"Firing now," a few seconds later a massive wave of energy washed over them and destroyed all the Replicators in the area including the structure and the spider-ship. "Weapon has discharged, all Replicators have been neutralised."

"And Sam?" Daniel asked hopefully.

"I am detecting a human life sign where the structure once stood," Thor responded.

"Carter!" Jack shouted out as the three dashed towards where the structure once stood.

"Sam!" Daniel shouted also.

"Over here!" Teal'c called from the side.

"Carter," Jack said as he caught sight of her. She looked to be unconscious as Jack dropped to his knees and lifted her head, "come on wake up."

Sam groaned slightly before her eyes fluttered, "Jack?"

"Excuse me?" Jack asked surprised.

"Oh I mean—sorry Colonel," she said as she held her head.

"Thor should take a look at you," Daniel suggested.

"Indeed," Teal'c agreed,

"Thor have you got a lock on us?" Jack asked into the comm.

"Affirmative," responded the Asgard.

"Then beam us up," Jack said with a sigh of relief.

The group disappear in columns of light a moment later...

Author's Notes:

And that's the end of the Replicators; next chapter will deal with Atlantis but don't expect me to stick to canon anymore because that's the last of it. From Atlantis onwards it is pretty much all original and no I will not be using any of the other races like the Asari or the Turians because of the Goa'uld dominating the galaxy.

The Goa'uld have pretty much destroyed everything they ever considered a threat starting from eight thousand years ago and the Asari attained interstellar travel one thousand years ago (with ME technology) so they would have been destroyed. The Reapers and the Collectors (Protheans) however...well you're just going to have to find out huh?

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