Disclaimer: I do not own any of the character's in this story, except Madison Vaughn and Emma Bristow. J.J. Abrams, sadly, owns all the rest. I also don't own The Parent Trap...obviously.

Summary: Sydney and Vaughn left each other 11 years ago. However, when their daughters discover the truth about their parents, will they be able to bring them together again?? Crossover between Alias and The Parent Trap.

The Spy Trap

Chapter 1: Packing

"There. You're all packed, and it's only nine. So Madison, what do you want to do for the rest of the day," said Michael Vaughn, as he turned towards his daughter.

They had spent the whole morning packing for Madison's upcoming trip to summer camp. Vaughn felt that his eleven year old daughter would have a better summer if she spent her vacation at the exclusive summer camp in Colorado, rather than spending her days home alone at their apartment while he was working. He felt awful that his job at the CIA in New York City kept him away from his daughter so much, but he knew it was his only option. He couldn't very well tell his daughter that the reason he was working so much was because he was a spy.

Madison, on the other hand, wanted very much to stay at home. She wanted to see her father as much as possible...even if that meant she wouldn't see him for most of the day. Even though her father's job kept him very busy with work, she was extremely close with him. They had always relied on each other for comfort and support. Sometimes she wondered, if her parents hadn't gotten a divorce when she was little, would they be as close as they were today? But she realized that was a moot point.

"What? You don't have to go into work today?" said Madison.

"Are you kidding me, baby? Do you think I would work the last day you are here? Me and Eric took the day off so we could spend the entire day with you. So, Maddie, what do you wanna do?" said Vaughn.

As she considered the delightful possibilities for their day, Eric Weiss, her godfather, entered the room. Like her father, Eric was a consultant for the CIA.

"Hmm...I guess I want to go to the gym and workout with you guys. I probably won't get a chance to do that for another month," Madison said.

"Damn, Mads," said Eric, "You are a strange little kid. Your last day before camp, and you want to go running. Listen to me hun, you could get anything you wanted from me and your dad today."

"I can get anything I want from you guys any day," laughed Madison.

"Haha, that's probably true. But seriously...you sure you don't want to force us to go shopping...or get your nails done...or make us see a chick flick with you? I hear there is a kick ass one playing down on Times Square," joked Eric.

"Eric! A fine example you're setting for Maddie. Why don't you go ahead and teach her the f-word while you're at it."

"Um, actually Daddy, I kinda know what the F-word is. I'm not a baby, you know!"

"How do you know that word?" asked her father.

"Hmm, let's think. I've seen a movie before. And anyway, I heard you saying it last week when you cut your hand." answered Madison.

"Nevertheless, I don't ever want to hear you saying anything like that. If I hear it, you're gonna be in deep shh- I mean trouble with me..Do you understand young lady?"

"What! This is totally unfair. I'm getting lectured for hearing Eric swear? That's so stupid. Why don't you take my allowance away while you're at it!"

"Madison, I was just stating how I feel about this. You are not in trouble. And let's not argue today." said Vaughn, "I want us to have a fun day. Now, do you still want to go to the gym, hun?"

"Yes, I guess for a hour or so. But, THEN we can go shopping, and get my nails done, and see that new movie...and then maybe-"

"And then we can go to the Yankee's game," added Vaughn. He had gotten three tickets for thats night game as a surprise for her. He knew that his daughter would go crazy when she heard this. She, like him and her beloved godfather, were HUGE Yankee fans.

"Oh my gosh DADDY! For real? You're like the best dad...in like..forever!"shrieked Madison, "Where are the seats?"

"Hmm, your wonderful father got seats...RIGHT BEHIND HOME PLATE!" joked Vaughn.

"Wow, daddy, that's like so freaking cool. I can't wait to go!" said Madison, as she climbed into her father's lap to give him a kiss on the cheek.

Vaughn was happy that his daughter had enjoyed his little surprise for her. He had been worrying that she wouldn't have fun today because she would be nervous about tomorrow's plane ride to Colorado. Truth be told, Vaughn wasn't exactly looking forward to tomorrow either. His daughter was a major part of his life. He knew that during the six weeks she was at camp, he would miss her terribly. But deep down, he knew the best thing for him, and for his daughter, would be for her to go. The next month and a half would be filled with dangerous and time consuming espionage missions. He couldn't risk losing his focus, by worrying about his daughter's safety. At least at camp, he'd know she was being taken care of.

"I hate to break up this touching Kodak moment between a father and daughter, but I think it would be a waste of a day to sit around talking. Let's get ready to go to the gym already," said Eric impatiently.

Madison and Vaughn both agreed to his suggestion, so they split up to get ready. She quickly changed into her sweat pants and a tank top. Madison also packed her shoulder bag with the things she would need for the rest of the day; that included: her cute jean skirt, her Jeter jersey, her sandals, her bag of makeup, and of course, a pin for autographs. She could hardly wait till tonight.

Vaughn also went to get ready. But before he could get ready, he needed to call into work and see what the situation was on Sloane. He needed to know the likelihood of going on a mission tomorrow, after Madison had left. Kendall guessed that, with some luck, they would be able to know the exact location of their objective in a few hours time.

Satisfied that he wasn't needed at headquarters, Vaughn quickly got dressed in his grey running pants and white wife beater. He was glad that his daughter had suggested they go to the gym. Running always cleared his head. He also liked seeing how much his daughter was like his ex-wife, Sydney. They both had the same joy of running and working out. Everyday, Vaughn could see more and more of Sydney in Madison. Sometimes he wondered whether she would be better off with her mother. He also wondered about Madison's twin sister, Emma. Did she look like him? Was she like him? Did she know the truth about her mom? Did she know that she had a twin sister?

When Vaughn and Sydney split up, eleven long years ago, they both agreed that each of them should have custody of their children. However, they realized that trying to share them with each other would be a bad idea. That's when Dickson, the director of the branch of CIA that they worked for, suggested that each of them take a daughter to live with them. Even though Vaughn and Sydney felt bad about leaving one of their daughters to the other parent, they knew, deep down, that this was the only solution. So Vaughn took Madison with him to New York to work in a separate branch of the CIA. Sydney, however, stayed in Los Angeles with Emma.

Before Sydney and Vaughn parted ways, they decided that they shouldn't tell their daughters about them being twins. Sydney and Vaughn also decided, that no matter what happened, they shouldn't try to contact each other. They knew it was better for them to not be romantically attached, because it just made them more vulnerable in the field when they were together. Besides, they might of made an excellent team as spies, but as husband and wife, they were anything but. Both of them were stubborn and headstrong, excellent traits as spies, but not good in a relationship where give and take was needed. The stress of their jobs also pulled them apart even further. Risking their lives, day in and day out, worrying about whether the other, or both, would make it through the mission, was no way to live. Finally, the marriage came to the point of breaking, and Vaughn moved out. A week later, he and his baby daughter, were on a plane to New York City.

Vaughn looked up from tying his shoes as his daughter entered his bedroom. She looked exactly like Sydney, except Madison had his eyes. She had the same petite frame, the same straight brown hair, even the same air of confidence and grace. He realized that his little girl was growing up, and he didnt like it one bit.

"Daddy, are you almost ready to go? I think Eric is about to go mental waiting on us. He's pacing around the living room complaining about how Vaughns take forever to get ready," laughed Madison.

"That idiot. Like he has any room to complain. Who's the one who has to wait every morning on him to get ready for work. Me! That's who," joked Vaughn.

Sometimes his friend could be quite annoying at times. However, he was eternally grateful that Eric, his best friend from LA, was able to come out to New York to work . Vaughn knew that without Eric, raising his daughter would of been twice as difficult. He was happy that Madison was able to have another parental figure in her life, besides him. When he was first divorced, he worried constantly about who his daughter would live with if he died on a mission. Unlike Sydney, both his parents were dead, and he didn't have any siblings. But when Eric moved out to New York City a few months after Vaughn's divorce, he knew that Eric would be a perfect godfather for his daughter.

"Daddy, can I ask you a question?"

"Well, I'm assuming you can, because you just did," laughed Vaughn.

"Ha Ha. Funny dad. Did I mention how funny you aren't?" replied Madison before sticking her tongue out playfully. "Fine then. Dad, MAY I ask you a question?" At her fathers nod, Madison continued.

"Do I really have to go to camp. I don't want to go to camp for that long. I'll miss you terribly. And I'm really nervous. What if no one likes me? What if I don't make any friends? What if--"

"What if, what if! Honey, you're going to have so much fun at camp...don't even worry about not making friends. You are so nice, and fun...why, I'll bet you'll be the most popular girl there," whispered Vaughn as he pulled his daughter onto his lap. "And if you miss me, you can always call me, or Eric. And we can write back and forth. Six weeks isn't that long, Madison. It'll be over before you know it." said Vaughn, giving Madison a hug and a kiss.

"But daddy, I've never been away from you for that long. I'm going to miss you dreadfully. And who will take care of me when I feel sick? Who will tuck me in when I have a nightmare? Daddy...don't make me go!" Madison said as she cried into her father's shoulder.

"I'm not making you go, baby," soothed Vaughn, "but you'll be having so much fun there. Don't you want to have fun this summer with girls your own age? Just think, every night will be like a sleep over! You can stay up late, and giggle, and do you know what the best part is, Baby?" said Vaughn as he pulled back to face his daughter.

"No, Daddy, what?"

"There won't be any parents to tell you to be quiet and go to sleep. You can stay up all night with your friends, without having to worry about getting yelled at by me!"

"Wow! That's cool, dad!"

"Yes, it is. So let's not be sad today. Let's think about all the fun you will be having this summer. Daddy will miss you too, Sweetie, but I'll be happy also because I know you will be having a great time."

"Okay, Dad. I'll try to not worry and have a good time," answered Madison.

"Good girl," whispered Vaughn as he gave Madison a good natured swat on her bottom. "Now, let's go before that godfather of your's has a fit."

Author's Note: This is my first story ever...so please be kind if and when you review...