Disclaimers- I do not own Transformers Hasbro does, nor do I own Buffy the vampire slayer or Dead by Daylight; I only own my OC's Kallie and Hayley Carter

Crossovers - Bayverse Transformers/Transformers Prime/Buffy the vampire slayer/ Game – Dead by Daylight

Pairings –Main - Bayverse Optimus/OC – Secondary pairing – Prime Verse Optimus/OC

Summary – AU – Two sisters lucky enough to find love, may have it all taken away when someone decides to throw them, and Jack, Miko and Raf into another realm from a very dangerous game.

Run For Your Life

Chapter 1

Kallie and her younger sister, Hayley basically were the two luckiest girls around. They both found their soulmates. Hayley fell in love with the leader of Team Prime Optimus Prime, while her older sister, Kallie who was a vampire slayer had a strange way of meeting her soulmate.

Memories of how they met…

Knockout glanced over at his patient. Optimus Prime was lying on the medical berth; he was in for his usual check-up. Knockout turned toward his leader with a frustrated sigh while the prime glanced at him.

"What is it, Knockout?" the flamed Autobot leader asked.

Silence...

"Optimus, we need to find a human who has the power to keep jump-starting your spark to keep it from shrinking," Knockout remarked. "At least to keep you stable, you have been under way too much stress, and we need to keep it under control now for your own good," Knockout said as Optimus looked away.

Silence...

"We must find someone who can do it quickly, and bring her back to the base by force, if necessary," Knockout replied as it was Optimus' turn to sigh.

He knew the risks, but now it was catching up with him. He had no choice. He was their leader and Prime. He was the last Prime, and he had a responsibility to his people. Normally, he would never condone what Knockout was saying, but he had no choice.

"Optimus?" Knockout asked.

"Very well, do it," Optimus answered as Knockout nodded.

"I will get Lennox and Epps and their team on this right away with the list of what the female must-have." Knockout replied.

"Affirmative Knockout, go ahead," Optimus instructed as Lennox and Epps were called in and given careful instructions.

Meanwhile, in another part of town...

Jasper Nevada…..

It was one of those nights when the rain came down in bucketfuls, and the lightning streaked through the sky. So, technically no one should be out in this type of weather, well anyone unless you happen to be a vampire slayer, that is. Kallie Carter and her sister Hayley had tagged along while Kallie was chasing down two vampires. However, no vampires were safe from Kallie Carter; she was an expert slayer, and she also had what no other slayer had, which was powers of the magic red essence. Even none of the original slayers like Faith or Buffy Summers didn't have that, and although the original slayers were long since dead, Kallie still held respect for them. Though Kallie did not train with a watcher, she would spar with holoforms of the Autobots who helped her train.

Kallie and her sister Hayley had experience helping out like Jack, Miko, and Raf. However, none held such power as Kallie did, and unfortunately, when one held power, there would be those who sought to find them.

Such as today…

Lennox and his team had heard of some strange goings-on in Jasper, Nevada, and had decided to go check it out. They had hoped that they would hit the jackpot for Optimus' sake because he was the Autobot's leader and Prime. He was also one of their strongest allies and they didn't want him taken down by his spark shrinking.

Later that evening, after dark...

"I don't think we're gonna find any females doing anything special now," Graham said in his British accent.

"Let's pack it in," Lennox started to say until Epps saw something out of the corner of his eye.

"Wait, look at that," Epps remarked as they saw a young girl chasing three odd-looking guys with another girl chasing behind her.

When the girl caught up to the three guys, she staked one with a wooden stake, and she used a powerful red essence on the other two, making them explode into dust. However, another one showed up; the girl kicked its butt before slamming a wooden stake through its heart.

"I just love my job," the girl said with a smile.

"Hey, Kallie, want me to call Optimus to have someone pick us up?" Hayley asked.

"What's wrong, little sis?" Kallie asked.

"I'm cold," Hayley complained with a pout as Kallie laughed. "I'll call Optimus; maybe he will send someone to come get us," Hayley remarked as Kallie rolled her eyes but slowly agreed.

Hiding in the bushes, Lennox and his team who were watching Kallie as she slew several vampires.

"Looks like they are going to call someone," Epps said.

"We can't allow them to leave, move out," Lennox ordered.

"Is that her, Major?" one of the soldiers asked.

"Yeah, she's our target; remember the Autobots need her for their leader, so don't hurt her." He said.

"What about the other girl?" asked another soldier.

"We bring her, Epps," he answered.

"Alright, you heard Lennox; let's move out," Epps ordered as they came out of the shadows with one objective to catch Kallie Carter.

"Sorry, miss, we can't allow you to call anyone right now," Epps said.

Hayley spotted the military guys first and alerted her sister, but she wasn't fast enough. Lennox motioned for the other soldiers to grab Hayley.

"Hey…Let me go, you creepy soldier!" Hayley ordered.

"Let go of my sister, soldier boy!" Kallie ordered as she used her slayer strength to fight the soldiers,

"We are going to be here all night at this rate; use the stuff Knockout gave us," Lennox stated softly.

"Gotcha covered, Will," Epps said as he used something Knockout gave them to knock her out.

"What the hell did you do to my sister?!" Hayley demanded. "My sister will destroy you where you stand, moron!" Hayley threatened as she saw Lennox pick up her older sister in his arms.

Lennox laid Kallie in the backseat of the military jeep, and he and Epps pulled out and headed back to base. Hayley was pissed off to say the least and she made sure they knew it.

"I hope the Autobots appreciate this because she is a wild one, and seriously what is a frigging slayer anyway?" Lennox demanded.

"Well, if it keeps big Buddha's spark going and healthy, that's all that matters," Epps said as they headed to the base.