Plot Summary: In the battle against KARR, Mike and KITT receive help from a stranger who is more than he appears to be.

Pairings: [ Sarah Graiman X OC ( Which Will Then Later Become Zoe Chae X OC ) ]

Disclaimer: I do not own Knight Rider, it rightfully belongs to NBC. I only own my OCs!

Warning: Violence, Sexual Themes, Strong Language, Trigger Warnings.

Brendan.

That was all he knew himself by.

His last name had been too hard to remember, certain memories were being protected by thick walls in his mind that made it impossible to access.

Brendan was a 23 year old white male, 5'8 in height with short, dark blonde hair with a unique silver streaks along the front tips. His eyes were an unusual shade of dark green. What was most unique about him was his right arm was completely robotic, right down to the fingers.

He doesn't know how he received this robotic limb, but he knows that he's much different than most people. He can run faster, jump higher, and is stronger than humanly possible.

In late 2007, Brendan had gotten a message from a man known as Charles Graiman, who stated that he could help fill the gaps within his missing memories.

Meeting with Graiman, he learned that he had taken part in a government experiment known as "Project Enforcer"

Graiman was the head of the project and oversaw the entire operation. Brendan had been hand selected, and his parents signing him over to the project to save his life as it was revealed that Brendan was dying from a rare disease, which had costed him his right arm.

At the time of the project, Brendan was no more than eighteen years old.

The project was to create a cybernetically enhanced individual, and pair bond them with an AI partner. Brendan was implanted with cybernetics, curing him from the disease and also enhancing his strength, speed, endurance, agility, reflexes, stamina and intelligence. He was also given a cybernetic right arm to make up for the arm he had lost to the disease.

His AI partner was known as the Knight Automated Defense Enforcer, or KADE for short. His AI placed in the body of a Black Shelby GT500 KR Mustang, which was loaded with special functions and capabilities, not to mention the car was invincible. One of the more unique features was that KADE was able to transform into a robotic form that was based on designs given to them from a government operation known as Sector Seven.

Unfortunately, the attempted pair bonding with KADE caused Brendan to lose control and kill twelve members of the project. And under the direct orders from Alexander Torres of the SSC, Brendan had his memory wiped and KADE locked up in an abandoned storage facility at an unknown location.

Graiman had found out that the project had been sabotaged so that another project known as "Project: KARR" could take over.

Charles gave Brendan the location of the storage facility where KADE was being kept, and told him to retrieve him. When Brendan asked why, Graiman simply just said.

"When the time comes, I'll message you again."

It was a year later, and Brendan had learned that Charles Graiman had been killed while trying to stop a terrorist attack. He had, of course received recorded message from Graiman saying that he wanted him to help in stopping the completion of the KARR Project, which had been reactivated after his death.

And this is where the story begins.

[ Location: Outskirts Of Nevada. ]

"AI signatures are on the move, one weaker than the other." The voice of KADE emitted from the voice box that was on the center of the dashboard, the voice modulator being a blue orb with a purple dot and bars raising in sync with the voice.

Brendan's hand gripped the wheel of the car gently, he had promised Charles that he'd grant his wish in stopping KARR. It was the one thing he could do, to repay the man in filling in the gaps that had plagued his mind for so many years.

"What are the chances of taking out KARR now that he's powered up?" Brendan asked his partner, looking at the dots on the holographic interactive screen displayed before him. One being KARR and the other being the other AI, known as the Knight Industries Three Thousand, Or KITT for short.

"You should be able to weaken him substantially, but there is no telling how strong he will be without further analysis—" That was when Brendan cut him off.

"You know we don't have time to analyze the whole situation." Brendan said, as he watched the two dots nearing closer and closer to their location.

[ Location: SSC Headquarters, Arizona ]

Zoe Chae, Billy Morgan and Sarah Graiman were watching on the monitors, keeping track of Mike and KITT as well as KARR, who was chasing after them. However, a new blip appeared on the monitor as all eyes focused on that.

Billy was quickly typing away on the laptop, trying to find out what the new blip was before his eyes widened with shock at what he was seeing.

"You're not gonna believe this, but there's a third AI signature out there. One that is neither KITT or KARR. It's completely different, and...much stronger."

Sarah actually had to shove Billy a bit to look more closely at the data that Billy brought up before quickly hailing Mike again.

"Mike! Be careful, there's another AI out there near your position." Sarah warned, a bit worried.

[ Back Out In Nevada Desert ]

Mike had barely any time to react before KARR's fist had slammed into KITT's already weak exterior. The force of the impact send the two spinning to a halt as KARR stood before them, in his cyborg form.

"I must merge with you, Michael Knight!" KARR exclaimed, his three digit servos flexing as Mike floored KITT's accelerator, the rear wheels on the mustang squealing in the dirt towards KARR, who fired his machine guns at the weakened AI.

"KITT must die! And you and I, will become one!" KARR said, with hatred in his tone as the bullets finally made contact with KITT's shell, going up the hood as the the cyborg's wheel like feet rolled over the top of KITT's exterior.

"It is our destiny!" KARR said, chasing after Mike and KITT as he swatted them with one of his arms, spinning them around as Mike put KITT in reverse, swerving left to right to avoid KARR's grasp.

"Well I got a different destiny for you!" Mike responded to KARR, who didn't seem phased as he struggled to grab the other Mustang.

"You were my original driver! We must be one. It is time to achieve our destiny, Michael Knight." KARR finally was able to grab KITT, throwing him as he rolled seven times with Mike holding on for dear life as the mustang finally rolled back onto its tires. The damage was clearly present on the AI as most of the body parts had either fallen off or barely clung on.

"Not today." Mike said, catching his breath.

"Michael, my nanoskin is not responding and I do not believe I can withstand much more." KITT responded, as Mike nodded in response.

"Right, if we're not gonna outmuscle this thing then we'll have to think of something." Mike said, but the sudden roar of an engine cut his thoughts off as he turned to see a pair of headlights rapidly approaching them.

[ Insert Theme: Scrapper By Lorne Balfe ]

And in the center of those headlights were two electric blue scanning bars moving inward and outward, similar to that of KITT! A closer look, and Mike could see it was another Mustang! But this seemed to be a newer model. The car swerved towards KARR and slammed into his side which forced the behemoth cyborg to topple over.

The mustang quickly pulled up, blocking Mike and KITT from KARR as the driver side door opened and stepping into view was a male figure. Mike was able to get a good look at him. He was white with dark blonde hair that had silver streaked tips. What got his attention real quick was his right arm which was completely cybernetic.

"KADE, I want you to protect these two and make sure that KARR doesn't go near them." The male ordered, his mustang revving in response before suddenly transforming before them, unlike KARR's appearance, KADE's robotic form had legs, and was much slicker than the former's bulky appearance. The eyes were a large blue visor which moved like a scanner. ( A/N: think Barricade from Transformers: The Last Knight )

"Right away." KADE responded, nodding as he stood guard before Mike and KITT as the male cracked his neck.

"I'll deal with KARR." He said, as KARR was finally able to get back up onto all fours to be greeted at the sight of the male now standing before him.

"YOU! How dare you interfere with my destiny!" KARR bellowed as he fired his machine guns at the male, who began to run full speed towards KARR. He was running faster than any human could ever have done so, and dodging the heavy 50. Caliber rounds that KARR was firing upon him.

Brendan dove, tackling the cyborg AI with the force of a train as he could see the unconscious form of Alex Torres within KARR's cockpit. Raising his cybernetic fist, he began to punch at the cockpit, trying to break it open and release its occupant.

KARR tried react and stop him, but the blows were causing his systems to malfunction and he couldn't concentrate. Finally, Brendan was able to bust open the cockpit and pull Alex Torres free, only for KARR to push himself up and throw the two off.

Brendan landed on his feet, his clothes now tattered and torn from being thrown and shot at by KARR.

"Time to finish this." Brendan said, determination in his tone as he ran at KARR once more, the AI firing missiles at the boy who dodged them quickly before leaping once more, this time landing on top of KARR who struggled to try and throw him off with furious groans.

Brendan then jumped off of KARR, going straight up before coming down with his fist straight out and open in a chop position. KARR's last few moments were watching as Brendan came down, his cybernetic arm slicing the cyborg's body right down the middle as KARR exploded in a massive fireball. The resulting explosion sent Brendan flying and impacting the ground hard as he rolled rapidly before coming to a stop.

Mike stepped out from KITT, looking in sheer awe and shock at what he just witnessed. KADE side stepped, allowing Mike to make his way over towards what little remained of KARR.

Laying amongst the pieces of burning metal, was Torres who had finally regained consciousness. Though, it didn't seem like he had much longer as the wounds he had sustained from merging with KARR seemed to have proven fatal.

"M-Mike...I...I'm sorry...I thought we could control it...I thought we could save soldiers lives..." Torres managed to get out, he was fading fast but Mike seemed to have none of it.

"Shut up man, I'm gonna get you out of here..." Mike said, but Torres shook his head. "I...I didn't mean to put you in danger...you or Sarah...or anyone...p-please..tell them I'm sorry..." with those final words, Torres finally passed.

Mike sighed, and heard the sound of sparking as he turned around to come face to face with Brendan. Mike's expression softened as he saw the other's face. The resulting explosion had caused some of Brendan's face to peel away, revealing some metal and bone underneath, and the metallic arm appeared to be cracked with several fingers missing.

"I...suppose you'll want an explanation?" Brendan asked, his tone soft as his legs were a bit wobbly.

Mike quickly made his way over and put Brendan's arm around his shoulder, holding him up as KADE made his way towards the two.

"We promise to explain ourselves, Micheal Knight. But right now, my partner needs immediate repairs." KADE said, as Mike slowly nodded. His mind still grasping onto the entire situation at hand.