For those who do not understand; I don't own this. It's fan fiction people!

This is A Yugioh/StarGate crossover.

Pairings are; Yami/Yugi and some others I will not bore you with.

You don't like, you don't read.

Flames will be used for my bonfire.

Now to make this special, I am writing this because I have permission from Kyren to continue it. Now I will rewrite some chapters and put my own ideas into it, so don't get pissed of at anyone because you can't seem to follow the storyline anymore.

Now my very very special thanks to Kyren. (Goes on her knees and bows.) You are my God.

Let's get it on with this fic! (I didn't forget anything did I?)

Shadow Gate

Powers Unleashed

Cheyenne Mountain Region;

Star Gate Command.

Colonel Jack O'Neill and his team stood in front of a huge circular portal. The Iris was closed as they prepared for the visit of Old Admiral Carter and his Tok'Ra Symbiot Selmac.

Jack sighed in annoyance. "So who do you think will try to kick our butt again and fail miserably?" at the confused stare of his major had him blink. "What? It's the truth, isn't? They ask for help, we go and help only to run into a huge amount of trouble and nearly get ourselves killed. Well it's the truth." He said as his Jaffa friend Teal'c raised an eyebrow.

"But Jack the Tok'Ra usually brings important information… and we don't always run into trouble when we go and help them." Doctor Daniel Jackson said. "Daniel's right sir and the Tok'Ra have been good allies." Major Samantha Carter said.

Jack looked sketchily at her. "Then name one."

The conversation was cut short as the Iris opened and Selmac walked out.

He was proud and tall as he walked down the ramp from the Stargate. "We have a problem." His voice echoed a little as he spoke.

"Hello Selmac, how are you. Everything's fine with us, nice that you ask." Jack greeted. Selmac smiled a little. "Hello Jack."

"So whose ass are we going to kick today?" Jack asked.

Shaking his head Selmac started to explain the reason of his visit. "Several days ago we received a message from one of our spies. Apparently Anubis has concurred a planet named Altera, on that planet he found what appears to be an unknown energy source. It's more powerful than what we know of."

"So you guys want us to go there and do our thing." Jack said.

Selmac nodded. "He is trying to harness the power and use it for a new kind of weapon. If he succeeds we will all be in an unpleasant amount of trouble." He paused and stared at the assembled team. "You'll have to sabotage the base from within; any attempts made from the outside have led to nothing. The Stargate is inside the base and you'll need an access code, which is changing everyday. The layout is quite simple; in the centre of the facility is the well of the unknown energy. What we have heard so far is that the energy source is extremely explosive, more so then Naquadria. Caution is highly advised. And try to prevent a fire fight from erupting. Doctor Jackson should be able to sabotage the system."

Teal'c looked at the Tok'Ra. "Do we once again need to use your bracelets? Or is there no need for them during this mission?"

Selmac shook his head. "No but that doesn't mean the facility isn't heavily guarded, our informant warned us that Anubis has his best Jaffa inside the facility. So you could suspect a resistance."

Jack smirked. "A routine mission then."

Altera

SG-1 had been able to enter the facility without much of a hassle, but after entering the Room with the well of energy trouble started brewing. The energy force they faced was a churning mass of black, violet and blood red. Even behind the force field that protected the surveillance room they could feel the power of the energy force. It had them shiver and very wary.

Daniel and Sam started to hack and sabotage the system, while Jack and Teal'c kept a close eye on the door behind them.

Within the seconds that went by something happened. A bright flash of light had the churning mass of energy quake and tremble, warning signs flashed across the screen. The Energy suddenly lashed out with what appeared to be a tentacle. With a crack the force field collapsed and hit the door, killing the Jaffa who had just entered the room and the once in the hallways.

From the energy three small forms appeared, they themselves were distorted. "Leave while you still can, this is something none of you can stop." The first one spoke.

"The Wheals of Destiny have started turning and time is ticking by quickly." The second whispered.

"Those who will appose the true once will find death waiting. You have been warned." The last yelled. In a flash they vanished and SG-1 found them selves at the Stargate as the earth trembled beneath their feet.

"Daniel dial us the hell out of here!" Jack yelled.

Faster then he ever thought possible they were back on earth.

Star Gate Command.

SG-1 walked out of the Stargate and met the anxious gazes of General Hammond, Selmac and surprisingly the Asgard Thor.

"Hey guys, what's wrong?" Jack asked in a cheery voice.

"Did everything go as planned, Colonel? Thor came with disturbing news after you left." Hammond began.

Jack shrugged. "We got in the base, kicked some ass, went to sabotage the system and then got interrupted by something. The energy force went haywire, killed some Jaffa and we were back at the Stargate, the ground started to tremble and fall apart. Daniel dialed out and here we are." He paused. "I have no idea what the hell happened. Carter?"

Samantha Carter shrugged. "I don't know sir, what ever those anomalies were, they did save our lives."

Thor seemed to have turned away a little. "We have disturbing news General Hammond, Altera has been destroyed, by what appeared to be the energy force."

"D-Destroyed!" General Hammond choked out. "But that's impossible."

"Apparently not, this will make my news more disturbing." Thor turned to Jack and his team. "Colonel O'Neill, we have found several other smaller energy signatures that match the one that has destroyed Altera. They are apparently on Earth; however they do not seem to be very dangerous yet. We have discovered their location, but we cannot go and retrieve them ourselves." Thor showed them a map of the world. "They have been located after they moved for several hours, one however still eludes us." A marker showed three young men in Egypt talking to one and another in a tomb and another one of a young man in an office talking through the phone and tinkering away with a holographic projector.

"Motou Yugi, Japanese. Ryou Bakura, English and Marik Ishtar, Egyptian. The last is Kaiba Seto, Japanese. They each posses a fragment of the energy, though the strength of them varies."

Jack turned to the General. "Weird kids with weirder hairdo. Want us to fetch them?"

"Yes we have no idea what they can do or if they are even aware. That doesn't mean they don't pose a threat. So be careful, Jack." Hammond said.

"Yes sir. Daniel and Teal'c will take the kids in Egypt, Carter and I will get the wiz kid."