Title: When Worlds Collide.

By: Highlander_XWO_Slayer

Summery: The World of Buffy the Vampire Slayer, meets the World of Star Trek.

Rating: PG to PG 13

Timeline: Star Trek: After the Voyager episode, Endgame, but set before the new Movie, Nemesis.

Buffy The Vampire Slayer: Set Two weeks after the events in the Chapter, Armageddon, in my story, A New Beginning.

Disclaimer: I don't own Star Trek, Or Buffy the Vampire Slayer. I only own Matt Summers, the things that deal with him, and the starship, the Power Mystic.

Feedback: please R/R

Distribution: Go ahead but please give credit to me when you do.

Chapter 1.…………

Star Trek Realm……………. Romulan Star Empire…………. Romulas…… Praetor's throne room….

The Romulan Praetor is sitting in his throne wondering why some one would demand to see him. He knew that no Romulan would ever dare to order the Praetor around. So this Talock, has to be from another world.

The Praetor's thoughts were then interrupted, when the doors to the chamber suddenly slammed open. The Praetor looked up at the door just as a very large creature walked in.

The creature walked up to the Romulan Praetor and looked him up and down. It then nodded before saying, "Good you had enough sense to meet with me. Now I know that the Romulans hate the Federation. Well so do I, and the ones that I work with."

The Praetor then asked, "Why have you asked to see me and who do you work with?" He asked with all the imperial pride that he could muster.

Talock shook its massive head and when it did the Praetor noticed that it had some Borg implants. But the creature then said, "Who I work with is no concern of yours. The reason that I am here is that I am going to give the Romulans the opportunity to destroy the Federation even before it was ever made."

The creature then held up a large box that it had been carrying. It then said, "Inside this box is the means for your warriors to finally destroy the Federation." It then handed the box to the Praetor. Who then held it lightly.

As the creature turned to go, the Praetor asked, "What are you, and where are you from?"

The Creature stopped and then looked back at the Praetor and said, "I am a Talivarocke demon. I have came from one of the deepest Hells. Now you better get to work." Talock then turned once more and left the way it came.

The Praetor looked at the box in his hands, before shouting for some guards and servants to do his bidding.

Earth……….Starfleet Headquarters………….. Admiral Janeway's quarters….

The room is dark and empty like. There is no sound until, the door chime sounded. The sound jerked Admiral Kathryn Janeway, out of a very sound sleep. As she rolled out of bed she said, "Lights." Then she said towards the door, "I'll be there in just a moment."

Janeway then reached over and grabbed the Starfleet issue robe off of the chair, where she had placed it before going to bed. As she made her way to the door, she thought that if it was another cadet or ensign, here to ask her about the Borg, she would throw them out on their ears.

Just as the door chime sounded once more, Janeway hit the button to open the door. What she saw standing there was not a cadet or a ensign. It was not even a member of Starfleet. It was a gentleman wearing very old, but yet still stylish clothing. She nodded at the guy then asked, "What can I do for you this morning?"

The guy stepped into the room and gave Janeway, a stand offish smile. He then said, "Hello. My name is Whistler. And I am here to warn you of a great danger that is going to befall this world."

Janeway gave Whistler a annoyed look before saying, "Ok, Mr. Whistler, it is late and I have a early meeting in the morning. Hurry up."

Whistler then proceeded to explain just why he was there. After a bit he handed her a box of some equipment. After taking it from him he said goodbye before leaving.

Janeway looked inside the box, then hit her combadge, "Admiral Janeway to Lieutenant Torres. Meet me at my quarters in half an hour. Thanks, now good bye." She then disconnected the com.

Two Hours later………….. The office of Admiral Paris……….

In the office Admiral Janeway, is sitting and telling Admiral Paris, and Admiral Ross, about the visit earlier that morning. After she was done, Admiral Paris nodded and said, "I believe that what you say is the best way to go. I think that Admiral Paris has the right ship to accompany Voyager."

Admiral Ross stepped to the edge of the desk and laid down a PADD. He then said, "That other ship will be none other then, the Enterprise. Under the command of Captain Jean-Luc Picard." He then nodded at Admiral Paris.

Admiral Paris reach over to some controls on his desk. He then said, "Ensign, please tell the Captain to come in."

A moment later the door opened and Captain Picard walked in. He then said, "Good morning Admirals. If I may ask," The Admirals nodded, Picard then continued, "Why has the Enterprise been diverted back to Earth, and why have I been called into this meeting?"

Admiral Ross sighed then said, "The reason is that we have come across some very troubling news." He then indicated Janeway, "I'll let Admiral Janeway here fill you in." Ross then went back to his chair and sat down.

Janeway nodded and waited while Picard sat down in another chair. After he did she began. "At about 3:oo a.m. this morning a very weirdly dress man showed up at my door. He said his name was Whistler, and."

She was about to continue but was interrupted by Picard. "Did you say Whistler?" Janeway nodded yes. He then turned to Ross and said, "I need to contact Lieutenant Commander Data, May I?"

Ross looked slightly confused but shook his head yes. Picard then tapped his combadge. He then said, "Captain Picard to Lieutenant Data."

After a moment, the voice of the android answered, "Data here. How may I help you Captain?"

Picard then said, "Data, I need you to look up something in that database that Colonel Serrafin gave us. Look up the name Whistler."

Data's voice said, "Yes Captain, but it will take a moment. I'll contact when I have checked. Data out." The com-signal ended.

Admiral Paris looked at Picard and asked, "What database are you talking about? And who is this Colonel Serrafin?"

Picard looked at Paris and said, "Colonel Serrafin was a gentleman, that appeared here in this universe a couple years ago. He and the crew of his ship helped the Enterprise-D with a problem we had. Before he had left he gave me a database that gave us information on some very unique creatures."

Picard was then interrupted when his combadge chirped. After tapping it he said, "Go ahead Data."

The android's voice then said, "I have found the name in the database. It says that Mr. Whistler is a Volarotinkarocke demon. It also says that he works for the Powers that Be, in keeping the balance between Good and Evil."

Before Data could go on Picard said, "Thanks, Data. That is enough."

Data's voice then said, "You are welcome Captain. Data out." The com-signal ended once more.

Before Picard could say anything, Paris leaned forward and placed his elbows on his desk, and said, "Captain, there are no such things as Demons. They are only myths."

Picard then said, "Actually, Admiral, they are. The help Colonel Serrafin, gave us, was taking out of a demon. It was in my report."

Ross held his hands up and said, "Lets have this debate later." He turned to Janeway, and said. "Kathryn, please continue telling Picard about what you learned."

Janeway nodded and then continued. "He came to give me a message. The message was that a new, powerful agent of the Borg, went to the Romulans and gave them the means to go back in time."

Picard looked at Janeway, and asked, "And do what?"

Janeway looked at Picard with somber eyes, and said, "Destroy the Federation even before it was started."

Picard sat back in his chair in shock. He then said, "There has to be a way to stop them. Before they can go back in time."

Janeway shook her head and then said, "It's to late. The Romulans have already sent at least two Warbirds, back through time. But Whistler did give me the means of going back in time also."

Admiral Ross nodded then said, "We have already taken the device and replicated it. The two devices are being sent to Voyager, and the Enterprise even has we speak." Ross then turned to Janeway, and said, "Janeway, Admiral Paris has already assigned your crew for this mission."

As Picard and Janeway stood up to leave and go to their respected ships Admiral Paris said, "Before you two go, I would like to say, Godspeed."

Both Picard and Janeway then left. Ross turned to Paris and said, "You needn't worry. Those two are the best that we have."

Bridge of the Enterprise…………….. Earth's orbit

Picard strode onto the bridge and made his way to his command chair. When he was seated, Commander Riker said, "The device has been installed and is ready to be engaged. As La Forge was installing it, he found out that the device also included a special cloaking device."

Picard raised a eyebrow and looked at Riker. "Indeed?"

Riker shook his head and said, "Yes. I suggest that we don't engage the cloaking part until after we arrive in the past."

Picard shook his head and then said, "Good. Data, as soon as Voyager is ready to leave, set a course for outside the system. And be ready to bring the device online."

Data's hands moved over his controls. He then said, "Aye, Captain."

Voyager's Bridge……………….

Janeway stepped out of the turbo lift and looked around. She saw that Lieutenant Commander Tuvok, was at the Tactical/Security station. Lieutenant Junior Grade Harry Kim, was at the Ops station. Lieutenant Commander B'Elanna Torres-Paris, was at the bridges, engineering 2 station. Lieutenant Tom Paris was at the conn. Ensign Seven of Nine, recent graduate of the Academy, was at the tactical station. At the other stations on the bridge were various Ensigns and Lieutenants. And sitting in his chair next to Janeway's, was Ensigns Seven's husband, and Janeway's First Officer, Commander Chakotay.

Janeway made her way to her chair and sat down. When she did Chakotay said, "Captain, the device has been installed, and is waiting your command to be engaged."

Janeway nodded and then turned towards B'Elanna who had cleared her throat. Janeway said, "Yes, Torres?"

B'Elanna looked at Janeway and said, "While I was installing the device, I noticed that it had a cloaking device built into it."

Janeway nodded then said, "That is good." She then said, "Harry send a message to the Enterprise, tell them we are ready to go."

Harry worked over his controls then said, "Message sent, and they say they are ready also."

Janeway nodded then said, "Tom set course for outside the system and engage."

Tom's hands flew of the helm controls, and he said, "Aye, Captain."

Enterprise's bridge……….

Picard watched while on the main viewscreen, Voyager turned and proceeded to leave the Sol system. He then said, "Helm Engage."

The Ensign at the helm said, "Aye, Aye. Captain."

Outside the Sol System…………..

On both Voyager, and the Enterprise the devices were engaged. Both ships jumped into a temporal warp. Not knowing what they would find when they arrive in the past.

Q Continuum…………

Q looked at the screen in front of him and said to his son, Q, "I hope that they know what they are getting into."

Q's son, Q then said, "I believe they have some clue. Otherwise why do it?" He then turned to his father and asked, "Father who is this Matt Serrafin and that demon Whistler?"

Q sighed and said, "The demon, Whistler works for the Powers that Be, in another realm." Q then shuddered, "And that Matt Serrafin is the only person with enough power to defeat the entire Q continuum." Q then shuddered again.

TBC……………………..