Greg walked into the warehouse. There were bodies everywhere.

"Hey, Sanders, good to see you," Flack called out, walking over to him.

"You too." He pulled out his camera.

"Hawkes, where are you," Greg called out to the other CSI. Hawkes set down another marker.

"Lindsay should be here, but you can start over by that door." He called out to him Greg nodded headed over where a large number of bullet casing had fallen. He crouched down, wincing slightly. He had mostly recovered from the lab explosion, but he was still a little stiff. There were people everywhere, as this was the biggest bust in recent history. Alison was so mad that he got to work this one. She was on the other side of town, testifying in a case.

A few hours later, Adam walked over to him.

"Hey, Greg looks like you were left to clean up the mess." Greg glanced around at the now-empty warehouse.

"Well, Lindsay should be here soon. Once the guns and the cocaine were taken back to the lab, it cleared out." Adam set his case down.

"Mac thought I could help you." Greg smiled at him.

"He's right. If Lindsay doesn't show, we got another 6 hours, at least."

Alison walked into Stella's office.

"Hey, kid, how did it go." Alison plopped into her chair.

"I got Capner today." Stella let out a moan.

"So he let the guy walk. I honestly don't know how he is still at the DA's office." Alison looked over at her.

"We got the conviction but only because he got a deal. He should have been put away for ten but got a measly 4. Erin said that she would have done the same with the evidence." Stella closed her folder.

"Your sister is the best ADA in the office, and she could have easily gotten the conviction. She is just a team player." Alison opened her mouth to say something but was stopped by an alarm. Alison flipped her legs in front of her. They headed over to the elevator. Stella stopped causing Alison to look at her. Following her gaze, she stopped Mac standing in the middle of the hall.

"We'll take the next one," Alison said as Stella walked over to him. The door to the elevator closed; they followed Mac into the lab.

"If there's a gas leak, then why isn't the flame reacting," Mac said looking at a burner that was still on. "I'm going to do an air test." Alison walked over to the machine turning it on.

"There is only one peek," Stella said, looking at the results. "We don't use that chemical here." Mac looked over at them.

"Then how did it into our building."

Messer walked into the warehouse.

"Adam! Greg!" He called out, but there was no answer. He walked further into the warehouse. The Police tape had been pulled down. He pulled his gun out. After rounding the corner, he spotted their cases.

"Adam!" He called out again, looking around for any sight of his friends.

"Messer lookout," Adam screamed from the back of the truck right as he got hit in the back of the head. They dragged him to the truck, where Adam was sitting next to Greg. They were both bloody and beaten.

"Get back against the wall." One of the masked me yelled.

"Okay, okay," Adam whispered out, looking down the barrel of the gun. They walked to the end of the truck to talk. Greg locked eyes on Messer as he pulled his phone out of his pocket. He was trying to get a message out. Before he could send one of the masked men, saw him walking over and breaking his hand after kicking him in the back. Messer screamed out in pain, causing Adam to pull further back. The man pulled Messer up to a sitting position.

"No more dumb moves. Are we clear." The man said in a thick Irish accent.

"What do you want? The drugs are gone." Messer yelled back in pain.

Stella pulled out her phone and tried calling Adam. She shook her head when it didn't go through.

"No signal." Mac and Alison pulled theirs out but were met with the same results. Shaking her head, she walked over to the lab phone.

"Land line's dead." She said, her eyes locked on Mac's. He walked over to another phone while Alison tried the computer.

"Internet is down," She said, looking at the screen.

"All our lines of communications are down," Stella said when Mac shook his head after trying the phone. The alarm cut out.

"Somebody just shut off the alarm," Mac said, looking around.

"Mac, I don't have a good feeling about this," Stella said, walking over to him.

"What do you think," Alison said.

"Someone's faking a gas leak to force an evacuation." Mac's words sent a chill down their spines.

"On the same day, we happen to have 900 kilos of cocaine in our vault." Alison looked up at this.

"What!" Mac looked at her; she had been in court all day and must have missed it.

"Flack had one of the biggest busts today." Stella nodded.

"This is no coincidence, Mac." She said.

"Let's split up; find out how the smell is getting in. if we can locate the source, we might be able to get some answers." The three turned to head in different directions.

Messer looked over at Adam and Greg. Greg was staring at Adam. There was a glimmer of emotion on his face. But all the blood and bruising was making it hard to tell. Messer looked down at Adam's hand, spotting three burn marks on his hand.

"What did they do to you," Messer asked.

"I'm so sorry," Adam said. "They were going to kill us."

"But what did they want." Adam looked over at Greg.

"They wanted his I.D. and the passcodes to the parking garage and the crime lab and…" Greg trailed off, looking at Adam.

"And?" Adam slammed his head against the wall.

"They wanted to know where their guns and drugs are."

Alison headed back to meet up with Mac and Stella. A hand clamped around her mouth and fear shot through her. She started to struggle, but Stella appeared in front of her.

"It's us," Mac whispered in her ear. She relaxed, and he pulled in behind the counter with Stella close behind them. Mac gave her a hard look, and she nodded. He slowly lifted his hand off her mouth. She closed her eyes for a moment taking in a quiet breath. Mac pointed back toward the hall. Alison opened her eyes, spotting a group of men coming down the main hall.

"We've been following these guys. They're not from the gas company. They belong to the gang we took down earlier. I saw them come off the elevator. One had a nine-mill under his jacket. Got trace off their shoes." Mac explained.

"We hound identical trace at the warehouse in Brooklyn," Stella added looked at Mac. "They're here for their coke. Mac, I told Hawkes to take the test samples back to the vault and then seal it. I mean, there's no way they can get in there unless they torch it, and that would take hours." They watched the men working.

"That's how they're going to get their drugs back. That gun was built to penetrate armor. It can slice through the vault door like a knife through butter." Mac explained Stella locked eyes with him.

"What are we going to do?" Mac turned back to look at the men.

"Stop 'em."

Greg looked at Messer's hand with his one good eye. They had clearly broken it. It was bent over at a bad angle.

"Can you help me," Messer asked, looking at Greg he gave a small nod looking down at his own arm. It was dislocated. Greg slipped over next to Messer. He pulled out his wallet, giving Greg something to bit onto. In one quick movement, he popped it back into place. Greg shut his one good eye fighting back the pain. Taking a deep breath, he looked at Messer, who gave him a nod. Messer ripped his shirtsleeve off, handing it over. Danny bit down as Greg splinted his fingers. Messer's body was trembling in pain.

"Adam, what have you got in your kit, buddy?" Messer asked when Greg was finished. They had clearly taken all of Greg's things. Adam paled, looking at them.

"What do you mean." Adam stammered out. "My…my kit's all the way over there."

"What you have in there." Messer pressed him again.

"Presumptive blood test, enough kit stuff to cast with a narco test kit." Messer nodded at this.

"Test kit, a test kit that's good. That means that you got Marquis reagent in there, which contains sulfuric acid." Greg looked up at this.

"You sure about this," Greg asked, looking at him.

"Yeah," Messer said, then looked back at Adam. "I'm going to need you to go get it." Adam paled.

"What?" Adam started to panic. "No…no…If I...If I move, they're going to kill me."

"I'll do it," Greg said, getting ready to move, but Messer stopped him.

"No, I need you for something else," Messer said, then turning back to Adam. "They're not going to kill us, 'cause if they were they would've done it already, okay? They need us as hostages. I know you're afraid, but so am I…so it Greg…but you are going to get it. You understand me?"

"How am I supposed, to…?" Adam didn't say anything before running out the back of the truck. Greg waited for a heartbeat before doing the same. Messer went one way, and Greg went the other get the guards away from Adam's case. Greg heard Messer get caught right as he got slammed against the wall.

"What yah liked it so much the first time. You thought we go have another go." The man in the sky mask said to him. Greg gasped as he hit his back, where one of his burns hadn't quite healed.

"No, I just wanted to give you a second shot at winning," Greg said, spotting Adam going through his case. Time he needed more time. The man smiles a sick smile.

"We'll see about that."

Alison listened to the report going over the police radio that the intruders had. There was a hostage situation. Mac and Stella paled they looked at her.

"Messer Adam and Greg were still at that scene." Alison closed her eyes. This day was going from bad to worse.

"We got to get out of here, Mac," Stella said the concern for their friends evident.

"These guys aren't cowboys. To be able to pull something like this together in a matter of hours means they're well-connected and methodical. I'm sure they've got eyes on the exits." A group of the intruders walked over to the elevator.

"Where's your piece," Alison asked.

"In my desk." They both said, looking at her. She shook her head.

"Mine too."

"Great, we've got no guns. What's the plan?" Stella asked.

"I don't know, but what I do know is that we got the home-field advantage. I'm not letting anyone walk out of my lab with evidence." One of the computers started to beep, and Alison slipped over to it.

"Guy's," She whispered over to them. "Looks like Hawkes is still in the building." She explained as they slipped up next to her. "The internet is down, but the internal messaging system is still working." Mac turned the computer as he typed to Hawkes.

"They're coming," Stella whispered as he sent his last message, and the three slipped out of the lab. Right as Alison slipped out, she hit a chair with her elbow causing it to spin. She mouthed, sorry as they ran down the hall. They would know that someone was still in the building. Mac opened the door to one of the side halls for then right as a group of the intruders rounded to corner. They pulled their guns right as the three CSI cut to the left, splitting up. Mac going right as Alison and Stella going left. They could hear gunfire and prayed that their friend was alright. Stella opened the door to Alison and Greg's office.

"Get your gun," Stella ordered as she shut the door. Alison was glad that the blinds were drawn. She walked over to her desk, unlocking it.

"I see Mac," Stella said, still by the door. Alison glanced over at the computer.

"You go find him I'll send another message to Hawkes." Stella nodded, taking Alison's backup piece.

"We got at least 12 men on this floor." She typed fast, glancing at the door. She could only see a glimmer of the hallway through the blinds.

"none on this floor." He wrote back. Before she could respond, the door opened. Alison dropped to the ground spotting one of the men in the reflection. In a smooth motion, she poped up, hitting him with her Yankees bat. He was looking at Greg's side of the office and didn't see her. He dropped to the ground, uncourteous. She picked up his gun, reaching into her desk drawer, grabbing her handcuffs. After restraining him, she made her way back to where Mac and Stella were. They were dragging a body over to the elevator.

"Two down 10 to go," Stella said to her.

"9 I got one locked up in my office." Mac nodded.

"I'm sending this one down to Hawkes," Mac explained as the elevator door closed.

Danny Reagan walked up to Flack.

"I hear that you got a Hostage Situation," Danny said.

"Yeah, what are you doing here." Danny pointed behind him, where Lindsay was standing next to his partner.

"She wanted to know how Messer was doing. I told her I would check." Flack looked at him.

"We don't know what the condition of the hostages is." Danny raised his eyebrow.

"But you have an idea." Flack stared at him.

"It didn't sound good, Danny."

"Nice toy." The radio in Flack's hand came alive, and Danny signaled for everyone to keep their voice down. Jackie and Lindsay walked over, standing next to him.

"Why don't you come outside?" Flack spoke in the radio. "I'll show you how to use it."

"oh, you're funny." The voice replied. "I like funny people. Unfortunately, the lads in here they're just not cutting it." Lindsay looked at Danny's concern written on her face, but she kept her mouth shut as Flask talked.

"Why don't we swap, me for the hostages." Flack looked at Danny, and he gave a nod. If they took the deal, Danny would run things out here. "I'm the one who put you out of business after all."

"Ooh, I'll think about it."

"While you're doing that, why don't you tell me what you want. Give me something to think about."

"Well then, let's start with my guys, the men you arrested this morning. I want them released."

Alison taped the man she had captured in the chair next to the one Stella had gotten. When they were finished, they walked over to stand next to Mac.

"They look confused," Stella said with a smug smile. Mac grabbed an aerosol can spraying it reveling lasers.

"It's simple if you two cross these lines or someone else does. It will set off that pipe bomb attached to the Hydrogen canister. Killing you and making the cleaning crew very unhappy." The three of them headed back down the hall toward the elevator. It opened, and Hawkes stepped off, jumping slightly until he realized it was them.

"You okay?" Mac asked, keeping his voice low.

"Yeah, what about you guys?"

"Wish I had called in sick today," Stella said with a half-smile.

"Adam's I.D," Hawkes said, handing it over to Mac. "Took it off one of the guys."

"Blood," Mac asked, looking it over.

"Yeah, it didn't come from the guy who had it." Stella got a fingerprint off the elevator button.

"Any luck finding the bullet?" Mac asked, returning to the matter at hand. Alison did her best to push the thought of how Greg was out of her mind as they ran the bullet. He had just gotten off sick leave and now this.

"print from the elevator match the print we got off the .50 caliber," Stella said.

"SO, the guy who was running the operation downstairs is the same guy who killed Gravin Wilder." The computer beeped.

"Got a case-to-case hit from our database," Mac said. Alison didn't turn away from where she stood at the door, keeping watch. "This slug is from the same gun. That killed Candace Broadbent." Stella walked over to him.

"The FBI agent."

"She was tracking an ex-IRA terrorist living in New York City. Before she was gunned down six months ago. Until now, the case was unsolved." Mac explained. Getting an idea, he grabbed one of the phones using the intercom to get the intruder's attention. He was finished talking. The sprinklers went off.

"I don't think he likes the part about you hunting down his father," Alison called over to him.

"There are only two exits, the stairs, and the elevators. Hawkes head to the garage to stop their cars." Mac nodded, checking how many rounds he had.

"I know good luck." Alison followed Stella heading for the elevator.

"What's the plan," Alison whispered at her.

"We're going to steal the drugs right back." Stella opened the elevator shaft. Looking at Alison. "You ready for this." Alison took a deep breath.

"sure thing." Alison dropped down on top of the elevator. Silently opening the hatch, she found it empty. Stella Handed her a mirror using it to see if they were looking in her direction she dropped down quickly, pressing the button to shut the door. The noise caused them to turn to spot her. Pulling their guns, they shot at her just as the door closed and lifted up to the floor Stella was on. The door opened, and Stella was standing there waiting for her.

"Good job, kid." Alison smiled, pulling the emergency nob.

"Now, they cant get this back."

Greg lay in the back of the truck with Messer next to him. Messer was a mess. They had enjoyed going in on him.

"Bring out the cops." One of the guys called out. Greg watched the two officers that had been taken with the three CSI being dragged out of the truck. The men forced them to change into the work outfits they had on taping guns to their hands and putting masks on their faces. Greg looked over at Adam, who pulled the bottle out of his pocket. The guys took their outfits out, changing into cop uniforms.

"We got to do something," Messer whispered over. "And quick or they are going to die." Greg nodded as Adam rolled the bottle over to them. One of the guys marched over to them.

"Get up." He yelled at Messer. "I said, get up." He pulled Messer to his feet just as he splashed him with acid. Pushing him up against the wall. Greg grabbed the gun, shooting the other guy. Greg ran over to Messer. He got some of the acids on his arm.

"Adam got save those cops I got this." Greg poured some liquid on it to counteract the acid.

"Thanks, Sanders," Messer said through gritted teeth. Greg opened his mouth to respond, but Lindsay called Danny's name. Messer struggled over to him as Danny Reagan walked over to Greg.

"Sanders, you really know how to step into it." Danny helped walk Greg over to EMS but stopped by Flack.

"What do you got," Danny asked, noticing his puzzled face.

"Gas equipment." Flack pointed at the back to the car. Danny froze.

"Lindsay Monroe said there was a gas leak at the crime lab." Greg closed his eyes. Flack took a step back.

"This was a diversion," Flack said, slamming the trunk shut. "We got to get back to the crime lab." Greg pushed Danny away from him.

"What are you doing, Sanders, your hurt," Danny growled out.

"I know, but Alison is at the lab. I can't go, but you can." Danny hesitated for a moment. Then ran after Flack. He hopped in the car next to him.

"Don't worry, Danny, chances are Alison is outside with everyone else," Flack said, glancing at him.

"No…No, she isn't. Because if she was, she would have been her with Lindsay once she heard that Greg was here." They pulled up to the scene, and Hawkes met them.

"We got a 10-13 in progress Mac Stella and Alison are still in there." He explained as they pulled their guns heading into the lobby. The intruders entered the lobby and were met with guns.

"Drop the bags and put your hands up!" Flack called out to them, causing them to freeze. The elevator door opened, and Stella and Alison walked out.

"Where's Mac," Flack called out to him.

"We don't know," Stella called out to them. They walked the men out to the street where they were placed in the car. Danny watched as Alison's Hand slipped to her side, rubbing it slightly. He opened his mother to say soothing, but a loud explosion went off. Alison and Stella looked at each other.

"What was that," Danny called out to them.

"A-bomb." She responded, heading toward the door with Danny right behind her. Before they could enter, Mac walked out, taking his clip out. Stella ran over, hiding him as Alison turned to look at Danny. He shifted, wanting to hug her but not wanting to push her.

"What are you doing here." She asked, looking around them.

"Greg sent me." Her eyes shot back to his.

"Is he alright." Danny smiled.

Greg made his way out of the Hospital. His arm was in a sling, and his eyes were still swollen. For the most part, he was fine. Messer, however, was still trying to get out. Greg pulled his phone out with a little effort. He needed to get a ride back to his place.

"Sanders." Greg looked up to find Alison leaning against her car parked at the curb.

"Reagan, what are you doing here?" Lindsay had explained that what had happened at the lab and that Alison was fin.

"I thought I would give you a ride." She said, pushing off the car. Greg slowly made his way over, and she opened the door for him. He slowly lower into the seat. She ran around to the other side, getting behind the wheel.

"I'm glad you're alright." She said, not looking at him. He tried to smile, but his face was swollen.

"Thanks, Ally I'm glad you're alright too." They didn't talk much, driving to his apartment or walking up to his apartment. Greg unlocked the door turning to her.

"See you around." She gave a small nod turning to go. "Ally." She stopped looking at him.

"What's the list." She flinched slightly. Greg instantly regretted asking the question he opened his mouth, wanting to take it back.

"It's a list of people who I can ride with." Greg looked at her.

"You ride with me." She took a deep breath.

"Mac vouched for you the first day we met." Realization dawned on him.

"Right, sorry." She shrugged her shoulders.

"It's not your problem." Alison waved him off.

"It could be if you trust me." He kept his voice low.

"I do trust you. I'm just not really to talk about it." Greg nodded.

"Take all the time you need."