A/N – I'm sorry for the delay and for the shortness of this chapter. I promise a longer one very soon! Thanks for reading and reviewing!

Instead of calling Danny back to the office, Jack decided to go to him. He tracked Danny and Vivian down at their missing person's work place. Just as he entered the parking area, he noticed Vivian and Danny talking to each other in the parking lot. As he pulled up next to them, they both frowned as he put the car in park and got out.

"Hey," Danny greeted in a perplexed tone. "Everything okay?"

Jack glanced at Danny uneasily before turning his focus to Vivian. "Have you guys finished up here?"

Vivian, also completely perplexed, replied, "Yes, but they didn't give us much. We were just about to head back to the office."

Jack nodded. "Okay, um, Elena is still working on our guy's financials. And Martin and Sam are following up on another lead with his brother. Danny's going to come with me, and you can take the car back to the office."

Danny's frowned deepened as he was about to say something, but Vivian beat him to it.

"Where are you guys going?"

"Yeah, where are we going?" Danny asked sarcasticly.

Jack sighed. "I can't explain it now. I just need Danny to come with me," he said as he opened his car door and slid into the driver's seat.

Continuing to look confused, Danny just gave Vivian a shrug as he made his way around to the passenger side and got in the car.

Watching Vivian get into her car, Danny asked, "What the hell is going on Jack? Did something happen?"

"You tell me," Jack responded, sounding annoyed as he put the car in reverse.

"Viv and I were here…working the case. I don't know—"

"When's the last time you saw Carlos Aguilar?" Jacked asked suddenly, cutting to the chase.

Doing a double-take, Danny shook his head. "What? Why? What's going on?"

"Just tell me when you last saw Carlos?" he pressed as he pulled into traffic.

Danny shrugged. "I…um…I—"

Glancing over at Danny quickly, he cut him off. "Don't lie to me. Don't you dare lie to me."

Narrowing his eyes, Danny glared at Jack. "I saw him a few nights ago. Tuesday night. Now you tell me why the hell you need to know?"

"His partner and his Sergeant think that he's missing. They've tracked his last movement to your place that night. A cabbie picked him up and dropped him off at his apartment. But the last person he talked to was you. And the cabbie says you were arguing. What were you arguing about?"

Danny took a deep breath and exhaled as he tried to collect his thoughts. "It wasn't really an argument. He was pissed about something that happened with Sophie. I told him that I was out of their lives…Elena and Sophie's."

"You lied to him?"

Danny nodded, realizing that Jack must know the truth – that he and Elena were still very much together.

Jack maneuvered his way onto the highway as he asked his next question. "Did Carlos threaten you or your brother?"

"Elena told you about that?"

Jack nodded. "She told me about Carlos's threats. Did he make any more threats that night?"

Danny shook his head. "Nothing that would hold up in court."

"What happened after he left?"

Frowning, Danny ran a hand through his hair. "If you've talked to Elena, then you know that she came to my apartment. I was with her for most of the night."

"She told me. She also told me that you put her in a cab at 2 a.m. What did you do after that?"

"What do you mean what did I do?" Danny asked, clearing not liking Jack's accusatory tone. "It was two in the morning. I went to bed."

"So you were alone from the time Elena left until you showed up at working the next morning?" Jack asked, his voice in full interrogation mode.

Danny nodded as he rubbed his eyes. "Yeah…yes, I was alone."

Deciding there wasn't much more he could do other than start a search for Carlos, Jack decided to just wait it out until he heard more from Kwon and Sergeant Feldman. After all, they weren't even sure if Carlos was actually missing. When he and Danny got back to the office, Danny returned to his desk and Jack to his office.

A few moments after getting settled, Martin and Samantha came in to update him on what they'd found about the missing person. After briefing him on their interviews, they turned to leave, but then Jack had a thought.

"Martin? Can you stay for a minute?" Jack asked as he closed the file folder in front of him.

"Sure," Martin said as he glanced at Sam as she walked out the door. "What's up?"

"I, um, I'd like you to look into something for me. It's not related to this case, and it's highly sensitive."

"What's it about?" Martin asked curiously as he took a seat.

"It's, um, it's about Danny. I'd like you to check his alibi from a couple of nights ago. I'm asking you because I know you'll be discreet."

"His alibi?" Martin asked, voice full of confusion.

Jack nodded as he explained the details of what happened with Carlos and what might happen to Danny if Carlos didn't turn up soon. "I just don't want us to be taken by surprise. And if we need to protect Danny, then we can be prepared."

"You really think that Danny could have done something to Carlos? Jack, I can't imagine—"

"I know what his mindset was just a few months ago. And now that I know he's still very much a part of Elena's life, I think he'd do whatever he could to protect them," he answered with a heavy sigh. "But honestly Martin, I just don't know. I do know that Kwon has his gut set on Danny, so I just want to make sure all the bases are covered."

"Got it," Martin said as he rose from his chair. "I, um, I'll go to the tech to run some record checks. I'll keep it quiet."

Jack nodded appreciatively. "Danny can't know we're doing this. He wouldn't understand—"

"I know…believe me, I know. Jack," Martin interrupted, his voice full of dread as he walked out of Jack's office.