"Bad Blood"

NCIS/ Leverage Crossover

Note: This is not my first fanfic... I've written some JAG and some Pretender over the years, but took a hiatus, so am breaking myself back in with this one. Sorry for any mistakes, I tried to beta myself as best I could. Also, this is partially AU and some of the dates/ timelines may not match up, but hey, author's privilege! This is mainly a Gibbs/ Eliot story (No slash) with some Abby/ Eliot mixed in and may turn into some Gibbs/ Jen. Will lend an answer to why Abby and Gibbs have such a close relationship.

Thanks for reading! Review if you'd like!

I Do NOT own NCIS or Leverage or the characters.

Eliot Spencer warily exited the elevator onto the NCIS bullpen. He didn't like being surrounded by this many feds. He paused for a moment taking in his surroundings, making careful note of the exits... just in case, and scanning the room for the man he had come here looking for. Eliot had to suppress a smirk when he saw him standing between two male agents in front of a flat screen. The years hadn't changed him. Same polo shirt and blazer, same damn haircut. Eliot took a few steps towards him and the man turned, catching his presence out of the corner of his eye. For a minute, Special Agent Gibbs thought he was seeing things. The young man with long hair was all too familiar, but he would never come to see him, especially not here.

"…so Smith's car should still be parked in the airport lot unless…" Tony DiNozzo broke off realizing his boss was no longer paying attention. He followed Gibbs' stare and met eyes with a rather intense looking stranger. "Uh, boss?" Gibbs ignored Tony. He and the young man by the windows were staring each other down, less than friendly expressions on their faces. "Boss?" Tony tried again.

Gibbs finally turned, obviously pissed.

"About Smith's car…?"

"Go check it out. Take McGee," Gibbs said gruffly and left their 'huddle' to approach the stranger.

Tony saw him motion for the man to follow him and shook his head. Sometimes the Boss man was too strange. "Let's go McGoober."

They stood waiting on the elevator in silence. As soon as the doors closed Gibbs slammed his fist on the emergency stop. "What the hell are you doing here?"

"You're not even going to look at me?" Eliot shook his head.

Slowly Gibbs turned, looking him up and down. He took note of the old cowboy boots and worn jeans and grimaced at the long hair cut. He had to admit he looked good. He was aging well and had gained a sense of mature confidence. "Why are you here, Eliot?" he said after what seemed like an eternity.

Eliot breathed out. It was a good sign he'd called him by his first name. After all these years, after all he'd seen and done, the great Leroy Jethro Gibbs still intimidated him. "It's about Abby."

Anger flared in the older man's eyes.

"I think she's in danger," Gibbs stood straight up at that and approached Eliot, half pinning him against the wall. "What have you done now?" he asked, teeth clenched. "I thought you hadn't spoken to her in years."

Eliot started and the soldier in him flared, but he suppressed the urge to fight back. This was him after all and he knew no matter how much bad blood was between them he'd never intentionally hurt him.

"I haven't . There was a picture of us I carried around… and the wrong person got a hold of it." Gibbs released his hold on Eliot's shoulder and grimaced as the young man handed him the photo. "I didn't even realize it was missing til it showed up with a knife through it on my front door." He held a photo of a much younger Abby with her arms around a much younger and much more innocent Eliot. Her eyes had been blacked out and above the couple were the words "No Peace" written in what appeared to be blood.

Gibbs' heart sank. He hated that Eliot had put Abby, his Abby, in danger. "You know who did this?"

Eliot shook his head. "Have some hunches. That's why I'm here. I need your help." He shoved his hands in his pockets and focused on the floor. "Well that…. And to make sure she stays safe."

Gibbs nodded. He understood. He still cared about her. "Someone from your sorted past?" He threw the picture back at him.

"Maybe," Eliot shrugged. "But I've been hanging with some new people… we could have pissed off the wrong guy…"

"Jesus Eliot."

Eliot became defensive. "It's not like that. Not anymore. I…We… help people."

Gibbs raised his eyebrows. "Trying to atone for past sins?"

"Something like that."

"It's gonna take a hell of a lot of helping to make up for what you've done."

"You should know. You taught me everything I know."

Gibbs stuck a finger in his face. "I never taught you to kill for money."

"No you just taught me to do it for revenge," Eliot spat out.

He nearly came unglued. "Don't you dare go there! You of all people should understand."

Eliot suddenly felt guilty as memories of that day flashed in his mind. The day that had ended his childhood. "I didn't say I didn't." He ran a hand through his messy hair. "But we ain't that different, don't make it sound like we are."

Gibbs pondered on that for a moment and decided to drop the subject for now. "You wanna see Abbs?"

Eliot frowned. "I spose I'll have to eventually… considering the circumstances."

Gibbs nodded and pushed the button for the lab, the elevator jerking back into motion.

Eliot smiled at the loud rock music that greeted them. "Nice to see some things haven't changed."

Gibbs smirked.

Abby felt Gibbs' presence and didn't even bother to turn around. "I told you I wouldn't have the DNA tests for another couple hours, Gibbs. You're so impatient! You know this is a delicate process and I…" She spun on her heels and stopped mid sentence as she spied Eliot standing there beside her boss, his hands shoved deep into his jeans pocket. A small started gasp escaped her black lined lips.

Eliot was afraid she might pass out. "Hey Abbs," he said softly.

"Eliot?" her voice cracked. He nodded. "You look different." She looked as if she was going to reach out to him but pulled her hand back as if she would get burned.

He offered a small smile. "You don't."

Her heart soared a bit at his statement. She shook her head to clear the haze that had always seemed to settle in her brain every time she laid eyes on Eliot Spencer. Reality set in. "What the hell are you doing here!?" She mimicked Gibbs' earlier question and the older man had to smile at her.

"I had to come," Eliot began. "Somebody's tryin to get to me… through you."

Abby raised her eyebrows. "Great El! I don't see you for, what 14 years and here you are…. HERE! At NCIS! In MY lab! Telling me that I'm in danger because of you! I thought the whole reason you left and I told you to was cuz that's no way to live!" She was pacing now. "And you told me if we stayed apart that we'd both be safe and no one would come after me and now someone is!? Someone from your past I assume?" She paused finally, her arms crossed, and waited on him to answer.

Eliot took a deep breath. Abby had stopped pacing just a few feet in front of him. He had been hoping for a little more of a welcome home. But then again this was Abby…the woman who'd once thrown a hairdryer at his head… followed by an engagement ring. "I'm not sure. It may be someone from my present."

"I thought you said you'd stopped all that."

Gibbs raised his eyebrows. "Wait just a damn minute!" He interrupted and turned to Eliot. "I thought you said you hadn't talked to Abby in years!"

"I haven't. Not technically."

"Relax Gibbs. He just sent me a letter a couple years ago. Told me he was safe and that he'd taken up a new job where he did good things."

Gibbs looked at Eliot. "And you didn't bother contacting me? You coulda been dead for all I knew."

Eliot shrugged. "We've never exactly been close."

"Dammit Eliot, I'm your father!

To Be Continued….

The next chapter will be part flashback to set the story a bit more. Thanks for reading!