She came back after four years to end what they had started. Now Callen and Gibbs, along with both their teams are called in to hunt one of their own. How will both their teams react when hunting down an old friend? How will G Callen take hunting down and killing the woman her loves?

Disclaimer: I do not own any of the NCIS: Los Angeles characters.

Chapter One: The Beginning

She pulled the trigger with determination, and she watched the life drain from one of the many men who were responsible, with satisfaction.

The warm Los Angeles night air made her think back of memories from long ago. She shook them away, she couldn't have them on her mind and she couldn't feel at home, not when there was still a job left to do. She wouldn't feel at home anywhere until every single one of those men who were responsible paid. That, she was sure of. As she walked away from the Venice Beach pier she flung the gun far out into the ocean. By the time NCIS: Office of Special Projects got here it would be long gone, and so would she.

. . .

"What can we do for you Director?" I asked leaning up against the steel table, my team around me.

"You have been called in, along with Agent Gibbs and his team, to hunt one of your own. She has been responsible for over a dozen murders, including two Naval Commanders. Agent Gibbs and his team left D.C. a few hours ago and are on their way to Los Angeles. I have assured the Secretary of the Navy that none of your personal feelings would get in the way" the Director said looking at us.

"Who's the agent?" my partner, Sam Hanna, asked curiously, arms folded over his chest.

A picture of a woman with emerald green eyes we all recognized came up on the screen just as the Director said "Special Agent Megan Hollis".

My fist clutched around the side of the table, my knuckles turning white. My throat tightened and my heart dropped into my stomach filling me with dread. I heard Kensi gasp from beside me, her hand covering her mouth in shock at hearing her old partner's name. Sam, our tough Navy Seal, looked shocked. Hetty, our fearless leader, even looked shocked to hear the news, and Hetty knew everything. I looked over at Eric; he looked like he wouldn't be moving for a while. The only people who didn't react to the name were LAPD liaison Marty Deeks, and Nell Jones, our new computer analyst.

"Mr. Getz is flying in to do a psychological profile on Agent Simmons. Dr. Mallard will be assisting him from here in D.C. She had made it clear that she is not going to stop, which has given me no other choice but to tell you to end this at whatever cost. She will not be taken alive Agent Callen that she has made sure to tell us. This is strictly in-house, no one else is to be involved, especially LAPD, with the exception of Officer Deeks. I do not want any other agency knowing about our rogue agent, especially the CIA. Is that clear?" he asked.

I stood there still in shock, so was my team. I was filled with horror at what he wanted me to do. I knew I could never kill her, it wasn't possible. I could never kill the woman I had once loved.

When we didn't answer the Director said "I expect you to push aside your personal feelings and do your job by dealing with our problem. Remember, she has killed over a dozen people. We have considered her armed and extremely dangerous. End this, now, Agent Callen", and then with a wave of his hand, the screen went black.

We stood, shocked into silence. Kensi was the first to speak. "Hetty, you don't think he really wants us to kill her do you?" she asked softly.

"I'm afraid he does Miss Blye. I have spoken to Agent Gibbs. You are all to ignore the Director's orders. You are to bring our agent home. Now, I do believe that Miss Hollis has left us a body at the Venice Beach pier. Go, investigate, and see if you can find anything that can help us find our agent. Bring our agent home, alive" Hetty said before walking out the Ops center.

I followed, my team coming behind me. The ride to Venice Beach was silent. We were all lost in our own thoughts, our own memories.

Deeks headed off to talk to the LAPD officer in charge about getting the case brought over to us, Sam and Kensi went to investigate the body, and I walked off down the beach lost in my memories, claiming that I was "seeing if she left us anything".

I sat down on the beach and stared off into the ocean.

Four Years Ago:

"Please, don't go Meg" I said grabbing her arm and stopping her from getting on the helicopter. The blades whirling around, getting louder by the minute. I could feel tears prick my eyes and I realized one thing, if she could make me, G Callen, cry, then I must really love her.

Megan saw this too, she hesitated, looking back at the helicopter and then back at me. A tear fell down my cheek and she wiped it away. Emerald green eyes were filled with sorrow.

"I'm sorry G, I have to, I need to. I love you G Callen, remember that" she whispered putting a hand on my cheek. I laid my hand on top of hers, eyes begging her not to go.

Megan kissed me on the lips, and I knew her decision was final, she was leaving me. "Goodbye G Callen, I love you" she said before walking away, and as she did, I grew angry, and hurt.

She threw her bag into the helicopter and was helped in by the co-pilot. I stepped back as the blades moved faster and faster, and then it began to lift off the ground. I saw her looking at me through the window of the helicopter, sorrow and pain in her eyes. It may have hurt her to leave, but it killed me to watch her leave.

"G?" Sam said coming to sit beside me on the sand. I looked at him, coming out of my memories.

"Yeah Sam?" I asked looking back out at the ocean, the sound of the waves comforting me slightly.

"You were thinking about her" he said, stating a fact more than asking the question. He always knew when I was thinking about her, one of the things that made him a good partner.

"Yeah I was" I said softly.

"Gibbs and his team are here. Kensi and Deeks went to meet them. Kensi isn't too happy with Deeks right now" Sam said.

"Why's that?" I asked not really listening.

"He asked why one rogue agent meant so much to us, obviously he didn't know Megan was one of us, a part of our team" he said.

"Kensi put him in his place?" I asked.

Sam turned to look at me and grinned. "Doesn't she always?" he asked.

We sat still for a few moments before Sam got up and clapped me on the back. "Come on G, we need to head back, Gibbs will be waiting, and I really don't want to piss him off".

I got up off the sand and started walking with Sam towards the Challenger. I thought I felt eyes watching me so I turned back to look at the way we had come from. No one was there, at least, not that I saw.

We got back to headquarters and saw Kensi and Deeks standing with four other people.

Gibbs turned to look at me, the same look of concern on his face that matched my own. I didn't blame him though, he always did treat Megan like a daughter, and he considered her his own. "Find what you were looking for?" he asked, of course he of all people would know.

"Not even close" I replied before we heard a sharp whistle. Eric was standing on the stairs looking pale and shaken. "You all need to get up here, someone is on the phone claiming to be Megan, and she wants to speak to all of you" he said.

Gibbs and I exchanged looks before hurrying up the stairs, both of our teams following us to the Ops center.

. . .

"Hello?" said a voice she recognized. Callen.

"Callen, Gibbs, I didn't expect you to be the ones hunting for me. Director Vance has a weird sense of humor, he did know, didn't he?" she said softly sitting across the street in silver Convertible outside the abandoned Spanish style mansion.

"Megan why don't you come in, talk to us, explain everything" Callen said, his voice almost pleading.

"You know I can't do that. The Director wants me dead. I have to finish what I started" she said softly.

"What exactly is that?" Gibbs asked for the first time.

She smiled. "I'm afraid I can't say, Jethro. Tell the Director that he started this; all of this is his fault. Now, I'm going to finish. They will pay for what they did to them, to us", the pain was clear in her voice.

"Meg, we just want to talk. We'll come get you. We're not following the Directors orders. We're following our own, just talk to us, please" Callen said.

"I'm sorry Callen, Gibbs, everyone, I can't come in until I finish this. Goodbye" she said.

There was a pause. "Tell Hetty your new headquarters suits her. It is quite lovely. Sam, next time, make sure you aren't followed" she said. She cranked the car, threw it in drive, and peeled out, tire squeals echoing through the phone. Then she hung up.

. . .

I saw Ziva take off running from the Ops center and out the door. A few minutes later she came back. "She's gone the street was empty when I got there" she said frustrated.

"Eric, McGee, Nell, check traffic cameras, see if you can find her on any cameras leaving this area" Gibbs said.

They all nodded and furiously started typing on the keyboard. Sam stood there, after a few minutes he turned to us saying "She followed us from the beach, she knows where we are".

"Eric can you replay the phone call, I know you recorded it" Kensi said. He nodded, hitting a few keys.

"Callen, Gibbs-"

"Fast-forward to when Agent Gibbs speaks" Kensi said.

"I'm afraid I can't say Jethro. Tell the Director that he started this; all of this is his fault. Now, I'm going to finish. They will pay for what they did to them, to us…."

The pain was clear in her voice as Eric stopped the recording. Kensi turned to look at us. "She said 'Tell the Director that he started this; all of this is his fault.' What could she be talking about?"

Gibbs and I exchanged looks. "There's only one way to find out" he said. I nodded. "Eric, get the Director online" I said. He nodded and a few minutes later the Director came online.

"I'm in a hurry agents, did you deal with Agent Hollis?" he asked.

"That's what we're calling you about Leon" Gibbs said, anger was in his eyes. I had seen that look many times before; it wasn't a look most people wanted to see.

"What about her?" he asked.

"She said you were responsible, that she was finishing what you started, and that it was your entire fault" I said stepping forward.

"I'm afraid you don't have clearance" he said. The doors opened and Hetty stepped forward.

"They all do now, Leon. They have a right to know, now tell them" she said. The Director sighed after a few minutes under Hetty's gaze.

"We sent Agent Hollis to Moscow, with her own team. They were supposed to infiltrate the Russian Mafia, which they did, successfully. She played the role of an assassin by the name of Elizabeth Meadows, many of you have probably heard the name" he said.

"I have, Mussed used Elizabeth Meadows on a few operations that were to dirty for our agents to handle, at least, that's what my father said" Ziva said. Director Vance nodded.

"Eli owed me a favor, before we sent her to work for the Russians; Elizabeth Meadows was supposedly a gun for hire, so she used Mussed as one of her credentials. When they found she had worked for them, they jumped at the chance. Her team, Agent William Briars and Agent Morgan Andrews had been undercover for the Russian Mafia for two years. They knew they were having their new leader come in, they're other one had been killed in a Mafia deal gone wrong, they just didn't know who, until they made contact. The three of them clicked instantly. Agent Briars and Agent Andrews were Elizabeth Meadows bodyguards. The leader of the Mafia thought that she was irreplaceable, and she was" he said looking at the agents in front of him.

"What happened to her team?" Sam asked.

"They were killed by the Mafia, tortured and killed right in front of her. She couldn't stop them; she was still undercover as Elizabeth Meadows, so she watched trying to act indifferent. If she reacted then she would have not only cost her team their lives, but also her own, and the operation would be over" Director Vance said.

"You made her watch her team slowly die in front of her?" Gibbs said his voice hardening in anger.

"Agent Gibbs we couldn't risk the operation, many more lives were at stake than just her two agents" Director Vance said clearly not happy with the way Gibbs was talking to him.

"She watched her team die! You're blaming her going rogue on something that's completely irrelevant to this Leon! If I watched those three die in front of me by the hands of Russians and I couldn't do anything, I would be doing the same thing she is!" Gibbs said jerking his hand back to point at his team.

I thought about it for a moment and then looked at my team. I would have done the same thing.

"Agent Gibbs, she has killed an NCIS agent, she has killed two Naval Officers. Before that we were fine, she was killing off people from the Russian Mafia, now we need to be taken care of. If you don't stop her, I will send in other agents who won't hesitate to do so. Finish this Gibbs; I don't want any more bloodshed other than what is necessary. I want a report I can give to SecNav tomorrow. Get this done" he said before cutting the feed.

Gibbs and I exchanged a look. "Time to call in a favor" he said. I nodded and said "Eric, bring Abby on screen".

If anyone could talk to Megan about coming in to talk to us, and succeed, it would be Abby Schutio the forensic scientist.

I hope you enjoyed this chapter. Let me know what you think, which means hitting the review button down there. Thanks!

Haleybug