Greg brought Kate to a restaurant and while they were walking through the parking lot, he heard the voice that brought shivers up and down his spine. The voice was behind him, "Good work Greggy." The two agents whirled around to see Horace holding a gun on them. Kate reconized him as one of the maintenence guys.

Kate looked at Greg apalled, "You lead me here!" she asked him. Greg nodded as tears started falling down his face. He'd betrayed hid friend, his co-worker and everyone important to him. He put so many lives in danger. He knew it wasn't his fault, but still felt guilty.

Horace grabbed Kate and quickly cuffed her, taking away her weapon. He advanced on Greg, who involuntarily took a step back. Horace raised the butt of his gun and brought it down on his head. Greg fought to stay consious, but after a moment the darkness seduced him and he sunk into oblivion.

Kate was so confused, if Greg was helping this guy, why did he knock him out? Horace started dragging Greg over to a minivan and threw him in the trunk. He in turn grabbed Kate again and shoved her into the backseat.

xxxxxxxxxxxxxxxxxxxxxxxxx

The next morning

Kate and Greg were late, it was uncharacteristic for the both of them. Gibbs knew the two of them went out the night before, but had no idea why they were missing. Tony told Gibbs the information he had found out.

"When I find Probie, I'm gonna kill'em," Tony said angrily his knuckles were white with rage.

"Somehow I still don't believe Greg would do something like that," Tim said sadly. They all thought Greg was a criminal.

"He had us fooled, he had us all fooled," Gibbs sighed, "I'm calling his old boss, get somemore backround info on this guy."

xxxxxxxxxxxxxxxxxxxxxxxxxxx

CSI: Las Vegas, Nevada

"Mr.Grissom," the speaker said.

"Yes?" Grissom answered.

"You got a call from Washington, concerning a Mr. Sanders," The speaker announced.

"Put them through," he said, picking up the phone, "Greg?"

"No, this is Special Agent Gibbs of NCIS. Sanders is missing," Gibbs said. He heard Grisson sigh through the phone, "Uh, Mr. Grissom."

"It's just his girlfriend went missing a month and a half ago, after he left. He never even knew." Grissom answered. He heard someone talking in the background.

"According to one of my agents, he knew," Gibbs told him and suddenly Greg's reaction to the phone made sense, "I think both of them may be down here, somewhere. Also one of my agents went missing with him. I think someone been using Greg, by threatening his girlfriend, to infiltrate by team. He's been acting strange whenever the phone rings. That's probably when he gets his orders."

"Wow," Grissom said, "I'll come down with some of my CSI's to assist. We'll hop on the next plane out."

"Ok," Gibbs said and hung up.

Grissom rounded up his team. "Cath, Warrick, we're going to Washington, to work on a case with NCIS. Nick, you'll stay here and hold down the fort. It's a lead on Sara's case."

"Wait a sec. NCIS, what's this have to do with the Navy?" Warrick asked.

"Yeah and... wait, isn't that where Greg moved to?" Cath added.

"Greg was forced to leave and join NCIS, (someone threatened Sara with bodily harm) now he and another agent have gone missing. That's the theory," Grissom explained.

The CSI's chosen to leave, booked a flight and packed quickly. Three hours after the phone call they were at the airport terminal and ready to leave.

xxxxxxxxxxxxxxxxx NCIS:Washington, D.C.

Later, Night time

Groggily, Greg tried to lift his head. He opened his eyes and saw Sara looking down at him, "Baby?" He asked quietly.

"Shhhh... It's okay Greggo, I'm fine. I think that lady is somewhat mad at you," she said pointing at Kate.

"She has every reason to be," he told her weakly.

Kate noticed that Greg was awake and walked over to where he was lying in Sara's lap. She was red and livid, "Look what you got me into!" She screamed at him.

Greg closed his eyes in pain, his head was throbbing uncontrollably. "They were going to kill her, I had to," he whispered gazing at Sara.

Kate face softened when she saw the love for Sara in his eyes. He was in enough pain already and besides, she'd have probably done the same if were Tony's life in danger. Greg looked around. They were in a warehouse that had only one window and it was too high for all of them.

Greg explained to the two woman what had gone on in the last months. His eyes filled with tears when he explained that he'd had no choice and felt terrible for what he did. When he mentioned Horace Gordan, Kate looked startled.

"Gordan?" She asked.

"Yeah," Greg said.

"Four month's ago, we arrested a Martin Gordan for murdering his wife and children. His wife was a petty officer," she explained, "How do you fit into this?"

"Horace's brother, Walter, (Martin's uncle) kinapped one of my co-workers and buried him alive. It's a miracle we found him in time." Sara told Kate.

"How awful," Kate exclaimed.

The door to the warehouse opened and Horace walked in holding a gun on them. He threw a small cell phone at Kate, who caught it.

"Call you boss," he ordered. Kate obeyed.