Disclaimer: I don't own Percy Jackson or Agents of Shield.

A little background info: This story takes place after Percy and Annabeth's senior year of high school. They are on a trip to Cabo, to celebrate their graduation and get away from Demigod life for a little while. The story starts after Agents of SHIELD season 2 episode 17. Coulson, Hunter and Fitz are hiding out in Mexico, trying to find a way to get control of SHIELD back. It will probably deviate from whatever happens in the episodes that follow, and may not follow the events in Age of Ultron, depending on what happens.

Enjoy, and any reviews are warmly welcomed!

It was a hot, humid, and beautiful day on the beaches of Cabo, Mexico. Children were splashing in the waves, playing tag, and building magical sand castles. Parents were watching from under the shade of umbrellas, or at the comfort of the beach's bar. The beach was swarming with friendly faces, dressed in bright colors and happy smiles. Travelers relished in the sunlight, basking in the glory of vacation days. Businessmen enjoyed a break with a couple of drinks in the lush, white sands. Women tanned on towels in tiny bikinis. Everything was perfect, and to the ordinary eye, nothing was askew.

Except not everyone there was who they claimed to be. There were three men, working as a team, hiding in plain sight. The man at the bar had dark sunglasses, an offensively bright hawaiian shirt, and a receding hairline. He pretending to sip his scotch and read a local newspaper, but if you looked closely enough, you'd notice his face was turned slightly away from his paper, and he wasn't turning the page frequently enough. His body was facing the beach instead of the bar. The second man was walking along the sidewalk, talking intensely into his phone. He seemed to be arguing a business deal-yet if you were lucky enough to get a glance at the screen, you'd realize the phone was broken beyond repair. The mystery man was talking to no one. The third man, appeared to be much younger than the others, a sort of innocence washed upon his face. He sat on the beach, amid the throng of beach goers, seemingly enjoying the lovely weather. A closer look would reveal his eyes nervously flicking back and forth, as if he was looking for someone-a threat, perhaps. His leg twitched, and he couldn't sit still. He kept flicking his eyes towards the man at the bar, and then towards a couple, sitting in the sand about ten feet away.

If you like piña coladas and gettin caught in the rain. If you're not into yoga, if you have half a brain. If you like making love at midnight in the dunes on the cape, Then I'm the love that you've looked for-

"PERCY!"

Percy jolted upwards, yanking his headphones out as he went. Faint music continued to emit from them. He reached towards his pocket, ready to jump into battle, until he noticed a face staring at him.

"I've been trying to get your attention for 5 minutes, Percy." Annabeth looked at him pointedly.

"We've got to go."

Percy looked confused. They had just started their much needed vacation, he didn't understand why they would have to leave the beach-it was probably the safest place for him. "What? Why?"

Annabeth looked nervous, which almost never happened. Whatever it was, it must have been serious. "Stay casual. Three men have been watching us for ten minutes. I noticed something was off about them immediately. Maybe we can lose them in the town, and then make our way back to the hotel. Just, act casual." Annabeth said as she stood up, placing her white sundress over her swimsuit, and placing her worn out copy of Sherlock Holmes into her bag. Percy stood up as well, shoving is Leo-proofed phone(meaning, Leo made a phone that was everything-proofed; fire, water, monster, etc.) into his swimsuit pocket, and pulling his worn out purple Camp Jupiter tshirt over his head.

As they began walking up towards town, Percy grabbed Annabeth's hand, swinging their arms.

"If we pretend like we're two star crossed lovers chasing each other, we'll get out of here faster." Percy whispered into her ear.

She grinned, jumped in front of him before saying, "Well, we are star crossed lovers, aren't we?" Annabeth took of running ahead of him, turning back to give him a taunting smile.

He couldn't help but smile back. She looked beautiful, her tan skin contrasting with the white sundress, her gorgeous blonde locks flowing behind her. He took off after her.

They ran through the markets, weaving in and out of stalls. Any random passerby would see them as two crazy kids, taking advantage of the beautiful day by spending it with the one they loved. The three mystery men knew better. They quickly realized they had been detected, and followed behind the couple at different vantage points.

After several minutes of running through the streets of Cabo, Percy caught up to Annabeth. He ran up behind her, picking her up and spinning her around, giving them a view of their stalkers. After putting her down, he pulled her towards a smoothie stand, asking for 2 pineapple smoothies. Once they got their orders, they walked towards a small park next to the street market.

"Looks like we'll have to change our tactics. They're still following us." Percy said quietly.

Annabeth smiled. "I know. I don't think we'll be able to lose them easily. I say we do this the hard way."

Percy glanced at her. She normally wasn't the one to initiate violence, but the situation called for it. They really had no other choice, unless they wanted to be abducted by three creepy men who had nothing better to do than to follow two teenagers.

"Alrighty then. Let's do this."

They slowed down, in order to allow their stalkers to catch up to them. Annabeth directed them towards a mostly deserted street, before ducking into a dark, wet alleyway.

They waited.

Hunter was nervous. They had taken precautions, just like always. How were two kids able to detect them?

It didn't feel right, following them into a alley. Coulson had no idea who they really were, he just thought they might be of assistance to the team. Hunter wasn't even sure how he knew this, but he trusted Coulson. Hunter stopped at the end of the street, waiting for Fitz and Coulson to catch up.

"What's the plan?"

Coulson regarded the situation. "They're just two teenagers. They can't do that much harm. You two, go in and subdue them. I'll follow in after, and we can debrief them back at the base."

Hunter nodded, and snuck forward with Fitz right behind him.

It's not like two teenagers could actually take down two SHIELD operatives, right?

As soon as Creeper #1 walked into the alley, Percy punched his lights out. The man fell, and slumped against the brick wall. Annabeth kicked Creeper #2 to his feet, then pushed him towards Percy, getting ready to deal with Creeper #3. Percy grabbed #2 into a headlock.

"Don't move. I don't want to hurt you, okay?" Percy said. The guy looked scared, and inexperienced. He quickly nodded his head, and Percy could feel the man's chest heaving up and down, his breath heavy. He would've felt bad for him if he hadn't been stalking Percy.

As soon as the last guy entered the alley, Annabeth pushed him against the wall, her forearm pressed against his throat. Percy thought it looked kind of funny-a pretty, blonde teenager threatening a 40 year old man.

"Who are you and what do you want with us?" Annabeth just about yelled in the guy's face.

"I think there's been of a misunderstanding here. My name is Phil Coulson, I'm the director of an organization called SHIELD."

Just then, #2 began to wake up. As he realized where he was, he attempted to lunge towards Percy, but Percy was faster. He already had Riptide out and pointed at the man's throat. He willed them to see it for what it was-he just hoped the guy didn't have the audacity to lunge again-the sword would be useless against him. The man in Percy's arm gaped at the sight.

"Is that a sword? Where did you get a sword?!" Percy noticed he had a British accent.

"Yes, it is, thanks for noticing-but I thought we were the ones asking the questions here."

Annabeth's eyes hadn't left the leader of the group. She raised her eyebrow, daring him to explain himself.

He gulped. "Right. Well. As I said. I'm the director of SHIELD, and these are a couple of my agents."

"What's SHIELD?" Annabeth asked.

"Are you kidding? Where've you been the last year, under a rock?" Hunter asked, incredulously.

"We've been a little busy. Don't watch the news much. Are you going to answer my question?" Percy was really glad he wasn't the one on the other side of Annabeth, because her glare could instill fear in the hearts of murderers.

"SHIELD stands for Strategic Homeland Intervention, Enforcement and Logistics Division. We work to protect the world from any threat that may appear."

Annabeth looked at the man suspiciously. "Why were you following us?"

"I want your help."

Annabeth hesitated. She hadn't been expecting this. "What? What do you mean?"

Coulson smiled. "I'd like you two to join my team. Become Agents of SHIELD."

Annabeth sensed genuity in his words. She released her arm from him, motioning for Percy to do the same. Percy let go of the young guy, and lowered his sword. He recapped Riptide and hid it in his pocket before the others could notice. The two men quickly backed up towards the entrance of the alley way, and behind the protection of their leader.

"Why don't we go somewhere where we can talk about this more comfortably. I saw a nice coffee shop just a block back." The man suggested.

Annabeth and Percy glanced at each other, hesitant to follow, before resigning and accompanying the three men to the cafe.

Coulson didn't know how to process what had just happened. He had been tracking a power surge in Cabo for a few days now, and had finally triangulated it back to the two teenagers conversing a few steps away from him. He had assumed they had some sort of powers-mutants, perhaps, but he hadn't suspected they'd already be trained in the art of defense. He supposed it would be a benefit if they agreed to join him-there would be no need to train them.

Coulson was surprised that they hadn't reacted to the things he had told them-aliens, the war, Hydra. They had acted as if it was nothing.

He had explained the current situation to them-that SHIELD had been working to take down Hydra once and for all, and was very close to finishing the job. However, the issue of the other SHIELD had arisen and Coulson was out of trustworthy agents. He hoped that Percy and Annabeth, as he had learned, would be willing to help.

He turned to the only two agents he currently had. "Well, that was much more interesting than I thought it would be."

Annabeth pulled Percy off to the side to discuss the prospect of joining a national spy organization, although the 'national' part was questionable, due to the organization only having 3 agents.

"I thought this last year of peace was too good to be true. What are we supposed to do, Percy? We were supposed to go to New Rome in a few months."

Percy was confused. He was tired of being a pawn of the powerful, but he also wanted to help people. "Well... New Rome will always be there, right? And this'll probably be easier than anything we've ever faced. Honestly, it might be a nice break-no monsters, or Gods, just... people. And... we'll be helping people, right?"

Annabeth looked at him for a few seconds. "Gods know that if anyone can save the world, it's us. You think we should do this?"

Percy smiled at her. "I... yeah. I think we should. Maybe we'll actually get some sort of credit for it this time."

It was times like these Annabeth was reminded why she loved Percy. He had such a good heart-he couldn't leave someone in need, no matter who they were. She was hesitant in joining an unknown organization, especially without knowing who they were dealing with, but she would follow Percy into anything. Besides, she guessed that if they went to New Rome, they would get bored and crave the sense of adventure that had been in their lives since they were twelve.

They walked back to the small table, and plopped down into the seats.

Annabeth looked Coulson in the eyes. "Alright. We'll do it."