The day was long and it wasn't over yet. The Five-O task force was on one of their most difficult cases and the longer that time went on the more frustrated they became.

"What else can we do," Danny Williams asked.

"We can call in an expert," Chin noted, "I was at that Criminology conference in San Francisco a while back and,"

"Wait, you got to go to that," Danny looked at Chin, "How did you get so lucky?"

"Enough," Steve broke in, "Who is this expert Chin?"

"Her name is Brynn Maguire," Chin walked to the bullpen and typed in her name. "She has an extensive history with the BAU," Danny looked at him oddly, "The Behavioral Analysis Unit within the FBI."

"Oh," Danny retreated.

"Anyway," Chin looked at Steve, "She might be able to help us."

"According to this she's in Texas," Steve pointed to the screen. "We don't have it in our budget to fly her out here Chin."

"She's here," Chin removed his phone, "She's here on personal business."

"You know this how," Danny asked grinning.

"Because," Chin sighed, "I knew her father and he just passed away. She's his sole heir and,"

"She's here settling his estate," Steve noted, "Do you know where?"

Chin nodded. Steve and Chin headed to Brynn's location while Danny and Kono stayed behind to follow up on another lead.

"You do the talking," Steve noted as they approached the front door, "You know her."

"I don't know her that well," Chin looked at his boss, "We sat together and spoke briefly but."

"Still," Steve knocked on the door.

"Yes," the woman answered looking very disheveled.

"Hello," Chin removed his badge, "I am Lieutenant Kelly and this is Commander McGarrett we are with Five-O."

"What can I do for you," She asked.

"You are Brynn Maguire," Chin smiled, "We met at a Criminology conference last year and,"

"I'm sorry," Brynn looked at him, "This isn't a good time."

They could see the house was full of people. "We apologize but we have this case and," Chin watched her trying to soak it all in. "Do you need any help?" He asked as he looked at Steve. "You have a lot of people inside."

Brynn knew a few extra hands couldn't hurt, "Sure." She opened the door and let them in, "After they're gone we can talk."

"Sure," Chin nodded and then introduced Steve to her. They felt a spark as they shook hands. She escorted them in and just had them patrol to make sure everyone was okay. Brynn and Steve would exchange glances on occasion as if they knew each other. Steve stopped and looked at the photo of Brynn's father. He seemed to stare at it that it concerned Chin, "What's the matter?"

"I know him," Steve noted quietly, "He was one of my Commanding Officers at Coronado." Steve looked at Chin, "You said you knew him, how?"

"When I was at Pearl," Chin expression showed sadness, "He would come every day and walk around. He would tell stories of his father being at Normandy or wherever else he was stationed during World War 2." Chin looked around, "I never put the pieces of the puzzle together but he said he was estranged from his daughter." He sighed, "It was only the last few weeks that he and Brynn reconciled. I met him for breakfast a couple of weeks ago and," Chin smiled, "He said they made peace."

"Yes," Brynn handed them a glass, "We did. I owe you a small thank you Chin."

"What for," He asked.

"You were the one who told him that it didn't or shouldn't matter what someone did for a living as long as they did it with integrity," Brynn tapped her glass then faced everyone. "Thanks for coming as you know the funeral is day after tomorrow and you are all invited. But tonight we are celebrating Patrick Jonas Maguire's life." Brynn said an Irish prayer and quickly downed the drink. They were now alone; Brynn was cleaning up when Steve and Chin approached. Brynn took a seat on the couch and looked at the two men.

"We have a case and we need your assistance," Steve leaned forward hoping his relaxed demeanor would help.

"Sorry," Brynn shook her head, "I don't do that anymore." She looked at them.

Chin spoke, "Please Brynn we could really use your help."

"No I can't," Brynn started to get nervous. She walked to the dining table glancing at the clock on her way, "Please," Brynn began placing food in containers, "Take these with you. I have more food then I know what to do with."

"Listen we'd be very grateful if you were able to assist us," Steve noted approaching the table.

"Why not call one of my former colleagues," Brynn didn't look at them, "I know one is a professor at the University," Steve interrupted her.

"We would prefer you," Steve replied, "Chin speaks highly of you and,"

"Here," She handed Steve a plate, disappeared for a moment then returned carrying a plastic bag and food containers, She placed the containers in the bag, "This should be enough for you and your team."

Steve could see there was no arguing with her, "If you change your mind," He removed a card from his pocket, "We could really use your help." He watched Chin approach.

"Brynn," Chin spoke softly, "Whatever reasons you have for not being an agent anymore doesn't matter," He picked up the bag, "What matters is that three kids are involved and they could use your help." She didn't move or say a word.

"Thank you for your time," Steve noted as he started for the door.

"Mahalo," Chin stated as he exited the house.

Brynn watched them drive off in Steve's truck. She bolted the door closed then sat on the couch. She felt the day takes its toll on her and contemplated what to do next.

"Any luck," Kono asked as Chin and Steve entered the bull pen.

"No," Chin handed Danny the bag, "Here's dinner." Steve walked into his office not saying a word to anyone.

"What this," Danny looked in the bag.

"Food from the wake," Chin noted, "Brynn wanted us to have it," He looked at the screen and grew even more frustrated. He heard Danny fiddle with the microwave while Kono retrieved the plates. Kono called that dinner was ready. Everyone sat in silence around the table eating trying to think what their next move would be.

"I'm sorry," Brynn noted as she approached the room where they were eating. "I didn't mean to interrupt your dinner."

"No," Steve jumped up, "It's okay." He introduced Brynn to Kono and Danny. "I don't suppose you would like any?"

"No," Brynn shuddered, "I have even more food at home." She stood for a moment then rubbed her neck, "You still need my help I assume?"

"Of course," Chin noted.

Brynn closed her eyes and breathed deeply, "I will do what I can but there are no guarantees."

"Deal," Steve smiled, "I will get you the file."

"Finish your dinner," Brynn waived him down, "I can wait out here."

"Stay," Kono smiled, "Have a drink with us."

Danny stood up and pulled out a chair for her, "Thanks." She replied as she sat down.

They ate their meal and seemed in better spirits hoping that what Brynn could add to the mix would help them solve their case. Steve could see the pain in Brynn's expression and figured it was from the death of her father; little did he know what the pain was really from.

"So," Steve pushed his plate away, "Do you think you think you can look over the case file now?"

"Sure," Brynn could feel all eyes on her, "I'm not even sure I can help." She watched Steve leave the room.

"Mahalo for dinner," Chin noted as he stood up; "Mahalo for being here."

"Don't thank me just yet," Brynn replied solemnly. "After all there are no guarantees."

Steve was now more curious then ever as to why she was no longer in Law Enforcement. He figured he would find out once the case was over. "Here's the file," Steve handed it to her then took a seat. With the exception of Chin everyone remained in their seats waiting with baited breath.

"I can't concentrate with everyone here," Brynn noted. "I'm sure y'all have other things to do."

"Right," Danny gave her an appreciative smile, Kono patted her shoulder and Steve gazed at her for a moment. "Steve," Danny called, "I think she means you too."

"Right," Steve stood up and was just about to leave when he stopped, "What made you change your mind?"

"Your charisma and good looks," Brynn noted dryly burying her face in the folder.

"Right," Steve replied as he exited the room. The team seemed fascinated with Brynn. They huddled around the table watching her read the file. "Who is she calling," Steve asked aloud as Brynn dialed a number.

Brynn rose from her chair and started walking around while the phone was ringing, "Good you're there."

"I'm always here for you, you know that," The man noted.

Steve watched her pace and could see it was more about nerves then impatience. "She's not happy," He noted as the others quickly turned away when she turned their way.

"When does your flight arrive," Brynn questioned knowing all eyes were on her.

"Tomorrow morning about ten," The man stated.

"Can you bring the Cochran file with you," Brynn's voice cracked.

"Wait why," he asked, "I thought,"

"Please I will explain when you get here," Brynn noted firmly.

"Alright I will see you tomorrow," The man sighed.

Brynn disconnected the call, gathered her things and entered the bull pen. "I will be back tomorrow."

"That's it," Danny's voice raised slightly.

"I have a friend coming in from the mainland and he's bringing something I need," Brynn looked at each one, "I can answer more tomorrow." She pulled her bag onto her shoulder, "Can someone call me a cab please or give me a number for them?"

"I can drive you home," Chin noted.

"We have that party at Uncles tonight," Kono noted.

"I will drive her home," Steve stated firmly. He escorted her to his truck and helped her into the cab. Their hands touched and both felt something again. He pulled onto the main road heading towards her home, "So do you plan on staying in Hawaii?"

"I'm sorry what," Brynn was a million miles away. "Not sure depends."

"On what," Steve asked looking at her. He could see the look of pain and sadness cross her face.

"Things," Brynn didn't want to speak because she was exhausted, "When I know you will know okay?" There was something in her voice. She couldn't get close, not yet.

"Sure," Steve knew to leave her alone. They rode in silence to her house. Steve escorted her to the house and made sure she was safe inside, "We will see you tomorrow."

"Yes," Brynn replied, "Thanks for the ride."

Steve pulled a card from his pocket and wrote on the back of it, "If you need anything and I mean anything, call."

"Mahalo Commander," Brynn stated as she locked the door behind him.

Brynn woke early and did everything she needed to before meeting her friend. She drove to the airport and waited at the baggage claim.

"Hey gorgeous," the man said as he approached.

Brynn turned and hugged him tightly, "It's good to see you Derek."

"You too sweetheart," He placed a hand on her cheek. "Are you alright?"

"I will be," Brynn stated but her shaky hands indicated otherwise.

"What's going on darlin," Derek asked as he picked up his bag.

"I was asked to consult on a case," Brynn didn't look at him, "It's connected to another case or at least I think it is."

Derek looked at her and could tell this was affecting her deeply, "It's more then that isn't it?"

"I don't know," Brynn retrieved her sunglasses and placed them on her face. "Do you want me to drop you somewhere?"

"Sure," Derek stood in front of Brynn's rental car. "I am getting a rental car at my hotel once I check in."

"What time is check in," Brynn asked as she unlocked the car.

"Three," Derek knew what she was thinking, "Come on," he smiled, "Let's go look at what you have figured out so far."

"Thanks," Brynn started her father's car and drove to Five-O headquarters. She and Derek showed their ID and headed to the second floor. She opened the door and found the team surrounding the TV screens discussing the case. "Commander McGarrett," Brynn called.

"Miss Maguire," Steve turned around. He didn't realize how much he liked Brynn until he saw this well built Special Agent standing before him. Of course, Steve was now in competition mode.

"This is SSA Derek Morgan," Brynn noted, "He's with the BAU."

"Nice to meet you," Steve extended his hand. Their handshake was intense. Brynn introduced the others to Derek while Steve kept an eye on her, "The conference room is yours." He was a little jealous but tried not to show it.

"Thanks," Brynn gave Steve a slight smile. She and Derek walked into the conference room. He sat down and began perusing the files. "Do you have the file?"

"Yes," Derek removed the file from his case and handed it to her. "Tell me what you are thinking so far?"

Derek and Brynn worked for a couple of hours ignoring the people outside the conference room. Steve would occasionally look over her way and would feel a twinge of jealousy when he would see them huddled together.

Brynn and Derek continued to discuss the case when they came across the connection, "Commander," Brynn swung open the door but didn't see him at first until he came around the corner. "There you are," Brynn noted practically bumping into him, "Was this tested," She questioned as she held up a picture of some blood.

"Yes," Steve took the picture from her touching her hand at the same time. They shared a glance both feeling the sexual tension between them. "Why?"

"I just wanted to make sure," Brynn rubbed her neck, "Just when I thought,"

"Hey Brynn," Derek called, "Think I found something."

Steve and Brynn headed to the conference room. Derek explained what he found. While he did Brynn felt her knees buckle under her fortunately Steve caught her. "You alright," Steve asked as he grabbed her arm.

"Oh my," she covered her mouth. Brynn looked at Derek then walked towards the window, "I hoped it wasn't true."

"What," Steve looked at Derek not quite sure what was going on.

Brynn didn't look at either of them, "This is all his doing." She started to feel ill, "He killed her," Brynn looked at Derek with hatred in her eyes. "I want him."

"Calm down you can't be sure," Derek held up a hand.

"What is your gut telling you Derek," Brynn raised an eyebrow and her voice at him. He didn't say a word, "I knew it." She looked at Steve who had a confused look on his face. She sat down. "Ten years ago a young woman with three kids was murdered. They never could prove who did it," Brynn sat down. "The case went cold. Then two years later," she closed her eyes. "One a year for five years; no evidence, no trace, nothing." Brynn sighed. "The murders stopped then," Brynn hesitated. "Here we are two years later and,"

"The murders have begun again," Derek spoke, "This time he's changed his MO." He looked at Brynn, "It was after Brynn's," he stopped realizing Brynn didn't share that part, "We figured that it is the same unsub."

"Is it," Steve asked.

"I believe so," Brynn replied softly, "He's here in Hawaii." She looked at Steve "And he's killed again. His victim was this woman," She tapped the photo, "And my father."

"Why break the pattern," Steve asked leaning forward.

"Because he's exacting his revenge," Brynn's hands shook.

"What makes you so sure," Steve questioned concerned about her.

Brynn leaned forward, covered her face in her hands then looked at Steve, "He was a SEAL." She looked at Steve knowing he was too. "I believe he was one of my father's students." She sighed. "If it is who I think he is," Brynn looked at Derek; "He's crazy." She looked at each of them and something in her expression ran chills up their spine. "He gets off killing. The first victims were;" She couldn't speak.

"Brynn's sister-in-law and her kids. It happened while her brother was deployed," Derek interjected. "After that it was other SEAL families except for this woman," he stated. "This time he left the kids."

"Why," Steve grabbed a seat.

Derek and Brynn looked at each other as if to confer without saying a word. "She was different."

"How so," Steve was trying to follow along.

"She's his wife and those are his kids," Brynn noted. "They were asleep correct?"

"Yes," Steve perused the file. "They were."

"Let me guess," Brynn looked up rather than at the men; "She was planning for a divorce."

"According to our records," Steve looked at Brynn and was impressed at how much she knew about the case.

"So were the others he killed;" Derek noted. "We believe that his parents divorced as a child and that he was blamed for the divorce. Whether that is true we don't know;" Derek stated, "His mom remarried and his dad died soon after."

"So he is seeking revenge for those getting divorced;" Steve shook his head; "Makes no sense."

"It rarely does;" Brynn sighed. "I think he killed my father because he," She sighed, "My father knew what he did and didn't stop him. Instead my father sent him on a mission."

"That would explain the time gap;" Steve looked at Brynn; "But why wouldn't your father report him?"

"Lack of evidence;" Brynn noted; "Or," Dare she say it; "He didn't care." She leaned forward feeling the weight on her shoulders. "He confessed something to me a week before his murder." She walked to the window. "He said he knew someone committed a horrible crime but they had a mission and that mission would save hundreds of lives. The woman and children that were killed were casualties of the life of a SEAL." She turned and looked at Steve with tears in her eyes. "They were innocent kids and he robbed them of their potential; of what they could've become," She slammed her fist on the table; "Of their lives. I want this sick SOB."

"We will get him;" Steve assured her. "We just need to figure out his next move before he does."

"I wish I could help you;" Brynn noted but she was at a loss; maybe it was the jet lag or the exhaustion that was wreaking havoc on her body. "I want so badly to help you it's just;" She didn't look at them and began feeling like she did before she left the FBI. Brynn tried not to shake but she couldn't help it. It was all coming back to her. The torture she endured, the pain she felt, it was all flooding back and she didn't like it. Brynn hated feeling helpless and right now she was as helpless as she could be.

Derek squeezed her hand, "They will get him," Derek looked at Steve.

"I hope so," Brynn sighed. She met Steve's gaze.

"I am sorry to interrupt," Danny noted, "Steve can I see you a moment?"

Steve exited the room while Brynn did her best to regain her composure. She knew breaking down wasn't going to do anyone any good. She was able to bury her emotions before and she knew she could do it again.

"How long ago," Steve asked keeping an eye on Brynn.

"About three hours," Danny noted.

Steve and his team took off leaving Brynn and Derek behind to continue gathering evidence. Derek was called to a case in LA and unfortunately couldn't stay. After Brynn drove him to the airport she returned to 5-0 and continued looking through the file. She was glad she was alone as some of her past began to flow through her thoughts causing her to lose concentration.

A short while later the team returned no better off than they had been before they left. Steve checked on Brynn who was now exhausted. She wanted to go home and soak in a tub and wash all the memories away. Brynn closed her eyes and did her best to place the pieces of the puzzle together. She heard someone clear their throat.

"Am I disturbing you," Chin asked as he placed a cup of coffee in front of her.

"No," Brynn noted. "Just trying to see how all of this," She moved her hand over the files, "Fits."

"Remember what they told us at the seminar," Chin noted, "We can't see the forest through the trees if there is fog on the horizon."

Brynn laughed; "I remember it differently but yes I know." She sipped the coffee, "Walk away for a while and maybe things will become clearer." She stood up and stretched then asked where there was someplace she could grab a bite to eat. Chin left and returned with a menu for a diner a block away. "Would you ask what everyone would like?"

Chin did just that then he accompanied Brynn while they picked up the food. The team welcomed the break. For an hour they spoke of everything except work while Brynn just sat and listened. Steve watched her and knew that not only the case, but her past, was catching up to her. They all decided it was time to get back to work. Steve encouraged Brynn to go home and get some rest but made sure she had all of his contact numbers, just in case.