Shocking surprises

Zack and Melissa had just finished dragging the unconscious bodies of the teenagers with a striking resemblance to Milo and Amanda into the house and propped them onto the couch, which conveniently, folded out to double as a bed for guests. As they lay there. Zack and Melissa discussed what they should do next.

"We really should get them to the hospital. From the looks of that write off that I'm assuming was a mini-van, they had quite the crash" Melissa suggested.

"And tell the doctors what, that duplicates of our best friend and his girlfriend crashed into the garage? We'll be laughed out the door and into a mental clinic" Zack rebuffed.

"Well, we've got to do something. We can't just leave them like this" Melissa shot back. She was examining the Milo duplicate very closely and noticed something off.

"Melissa, what are you looking for?" Zack inquired.

"Do you remember your first day at our school, when you first met Milo? He took a picture of his scar and sent it to me" Melissa recalled.

"Yeah, I've been meaning to ask how he got it" Zack remembered.

"Take a look at the same arm Milo got the scar on" Melissa observed. Zack did so, and they both noticed that the scar was not present. "This isn't Milo" Melissa added.

"But if this isn't Milo, then who is he? And who's the girl that came with her?" Zack asked. At that point, Doofenshmirtz came into the living room, slightly annoyed.

"So, the garage is fixed, again. Expecting anyone else to crash into the house?" Doofenshmirtz probed, rhetorically.

"No, we should be fine. Were you able to do anything with their transportation?" Melissa asked.

"That thing is totalled. It's not going anywhere. Though something tells me it was designed for only one trip. There was barely enough time juice for one jump here" Doofenshmirtz explained.

"Time juice? You mean that thing came from the future?" Zack pressed. Melissa was thinking for a bit, then a light clicked on in her head. Before she could speak, however, the two patients came around.

"Did we make it?" the boy asked, groggily.

"How should I know? You were the one driving" the girl replied. Melissa approached them.

"Easy, you two had quite the crash. From a cursory examination, you two don't have any serious injuries, but please try to keep still" Melissa instructed.

"We don't have a lot of time. We have to find Phineas Flynn" the boy argued, but Melissa was insistent that the two remain.

"There'll be time for that later. I just need you to answer one question. Is your name Daniel?" Melissa inquired.

"Yeah, and this is my sister Kathy" Daniel introduced.

"Wait, Milo has secret siblings we don't know about? Just when you think you know a person" Doofenshmirtz said. Kathy shook her head.

"Is he serious?" Kathy wondered. Zack, however, was now putting two and two together.

"Oh no!" Zack realised.

"Yep, these aren't Milo's siblings, they're his kids, from the future" Melissa concluded.

"I thought we were done with time travel when we defeated those nut-jobbers" Zack recollected.

"You're going to have to call Milo and get him back here. He'll know what to do" Melissa suggested.

"That'll be a nice conversation. Hello, Milo. Could you please leave your immediate family to come deal with your future family?" Zack mocked.

"I'm going to have to call Amanda and tell her she's a mum now. It's not like I have it any easier" Melissa countered.

"Whatever. Let's just get this over with. Hey, Dr. D. You think you can give Daniel and Kathy a look over for anything serious, broken bones, concussions, etc.?" Zack asked.

"I'm not that kind of doctor" Doofenshmirtz retorted. Melissa then shot him a look that said 'just do it'. "But I'll see what I can do" he added upon seeing this look.

At Milo's aunt's house, the extended Murphy family were regaling each other with stories about what they had been doing since they last saw each other. At least, Aunt Laura and Uncle Joey Murphy wanted to do that. Cousin Nate just wanted to know if it was true that Milo is a secret agent working for some government institute he'd never heard of before.

"What, no. I'm fourteen. I can't be an agent" Milo assured him. Since the end of the Cipher War, all Milo wanted to do was put Excalibur behind him and live a normal life, at least as normal as Murphy's Law allows. Nate, however, was not convinced.

"Oh, really? Tell me then, is it true that you know one Dipper Pines?" Nate interrogated.

"Yeah, why?" Milo answered.

"The very same Dipper Pines that was picked up by authorities in connection to the Excalibur Institute?" Nate pressed on.

"That was put down to a case of mistaken identity" Milo countered.

"Or so Excalibur would have you believe" Nate dismissed. Sensing trouble, Aunt Laura changed the subject of conversation.

"So, Milo. Your father tells me there's now a young lady in your life" Laura redirected.

"Yeah, her name's Amanda. She's the best. Very order-driven and determined. You'd like her" Milo described his girlfriend.

"We must meet her and her family sometime. Maybe the next time we come down to visit you, you could invite her over and see if she likes us" Joey suggested.

"I'm sure she will. After all, the way Sara tells it, we might as well arrange the wedding right now" Laura mused. Milo blushed hard and chuckled out of embarrassment. As if on cue, Milo's phone went off. Grateful for the excuse to step out, Milo took the call in the back yard.

"Boy, Zack. You sure saved me from some embarrassing conversation about my future bride" Milo greeted.

"Yeah, well don't thank me yet. We have a problem that needs your attention" Zack informed.

"We talked about this. Murphy's Law shouldn't kick in while we're not there. Just take it easy and have a good time with Melissa. You were looking forward to that, if I recall" Milo assured.

"I think it's better if we switched to video chat" Zack implied. Milo did so, and Zack's image was clear on his phone.

"I don't understand. What's happened?" Milo asked.

"Well, you know about time travel, right?" Zack responded.

"Oh, for goodness sakes, give me that!" Doofenshmirtz ordered and took the phone from Zack. He showed Milo the new arrivals on the phone. "Congratulations, you're a father now" he added bluntly. Milo had no idea what to think at this point in time. If it was not shown to him in high definition, he would've had trouble believing it. But there it was, in his house were two teenage kids that resembled him and Amanda in every possible way.

"Hi, dad" the two kids said together, as if adding more confusion to the mix. Zack was right, this did need Milo's attention.

"Keep them in the house. I'll be there as soon as I can" Milo instructed and hung up. He went back inside, found his father and told him what had happened.

"WHAT?!" was Martin's reaction. He gathered Brigette and Sara, put them all into the car and made instantly for the Murphy house, all without uttering a word to anyone else.

"Probably a matter of global security" Nate jibed.

"Not this again" Joey grunted.

On the highway, Martin was almost speeding back to their house, still confused and shocked about what Milo just told him. The passengers all grasped their seats with their hands, not sure if Murphy's Law or Martin's driving would put them in the hospital, that is, if they weren't pulled over first.

"Milo, please explain to me what my future grandkids are doing in my house" Martin demanded.

"How should I know? All Zack told me is that they crashed into the garage out of the blue. He didn't think to ask them what they were doing here" Milo replied.

"You may want to slow down, dear" Brigette suggested, trying to calm Martin down.

"Slow down? We just became grandparents at the age of 45, and you want me to slow down?!" Martin responded.

"You think I'm not freaking out, too! I knew our lives would be chaotic when I married you and had our kids. I never expected this to happen, either, but we have to be rational about this. After all, aren't you the one who says everything happens for a reason?" Brigette said. Martin took a few deep breaths and eased up on the gas pedal.

"You're right. I lost myself there. It's just I'm used to falling debris, unbuckling bolts and spontaneous fires, but not this. Sorry, guys" Martin replied apologetically.

"It's fine, dad. Besides, I'm still internalizing the concept of being an aunt" Sara forgave.

"If it helps, I remember Kathy being really into Doctor Zone" Milo comforted.

"Yep, that's my niece" Sara said with a tint of pride. Now that the tension had died down, Brigette took this opportunity to ask the question that had been on everyone's minds.

"So, Milo. How do you feel about being a dad?" Brigette asked.

"I'm only fourteen. I never expected to see Daniel or Kathy again for ten or more years. It's a lot to take in" Milo answered. He had told his family about his brief stay in Bill's dream world, where he was married with a family in a nice house, had a successful career and no Murphy's Law to contend with. He also told his family how he vowed to make them real someday. Milo was not expecting that day to be today though.

In the future, the Phineas Flynn of 2042 had been summoned to an underground meeting of military commanders to discuss the Earthguard situation. In short, the odds of survival were grim, and everyone blamed Phineas for it.

"You developed it, you shut it down!" one commander ordered.

"Don't you think I've been trying?! The chain of command has been severed. Earthguard is ignoring every remote command I send. Remote shutdown is impossible!" Phineas briefed.

"Then we brute-force de-activation codes if need be. With our combined hacking technology…" another commander began.

"Won't be enough. It's a closed system now. Even if you could produce codes that worked, you'd have to be in Earthguard's central command centre for them to work, and that place has security tighter than Fort Knox now" Phineas shot down.

"But it is possible to produce working codes?" hypothesised General Johnson.

"Earthguard is designed to change its de-activation codes every 10 minutes, and every robot is connected by the system itself. They're a hive mind now. Any soldiers that get seen trying to access the command centre will be faced with an entire country's worth of robotic forces in minutes. Project Tempest is all we've got" Phineas concluded.

"So, you're telling me, this whole council, that the fate of the human race rests in the hands of two teenagers?! How do we tell our public that?" demanded another commander.

"These aren't just two teenagers. They're Murphys. They're adaptable by nature and they'll find a way" vouched General Johnson.

"Plus, I designed Tempest myself, programmed it to drop them off at the earliest point in time before Earthguard reaches critical stage" Phineas added.

"Somehow, that doesn't give me much hope" the first commander interjected. Phineas wanted to object, but he knew that their ire was understandable. Whether he wanted to admit it or not, Phineas created this mess and left his friend's kids to fix it.

"Meeting adjourned" concluded General Johnson, and everybody left. Phineas got back to his family, using an underground network of tunnels that used to be the subway system that led back to his emergency bunker, even more depressed than when he left. He usually tried to see the upside in every situation and tried to stay positive. Now, that was a little hard to do. He summarised the meeting to Isabella, who tried to cheer him up as best she could.

"You tried to warn them this could happen. I'm sure you would've found a way to shut it down if you had time" Isabella comforted.

"Yeah, but I built the thing to begin with. What was I thinking?" Phineas wallowed.

"You were thinking about keeping us, your family, safe from another Bill, as any father would" Isabella answered.

"Funny, in trying to prevent the end of the world, I ended up creating the very scenario I hoped to avoid. Candace was right about me. My inventions are dangerous" Phineas resigned. Isabella did not know how to answer this one. While the big ideas Phineas had were grandiose and were always fun, looking back, she couldn't help but think that maybe, just maybe, Candace had a point about the inventions being death traps to the untrained eye. Yes, Phineas and Ferb were very safety conscious, becoming even more so when they met Milo, not everyone could see that. It would be easy, in those instances, to label Phineas a dangerous show-off. Just when things couldn't get worse, Florence, Phineas and Isabella's twin daughter, came running towards them with a panicked expression on her face.

"Isaac's gone! Must've snuck out while you were away. Left this note on his pillow" Florence informed her parents, who took the note and read it, to their horror. It read as follows:

Dear Mum and Dad

I was awake when I heard you two arguing about Earthguard, and I know what you're doing to solve the crisis. I cannot, in good consciousness, leave my best friend and his sister on their own in the past with no back-up. I'm heading to the Danville Museum to use the other time travel device to go back and help in any way I can. Florence, Maria, and Andrew have no clue what I'm doing, so don't be hard on them. Don't worry, I know the sewer system very well, so I won't get spotted by Earthguard's robots. I love you all.

Isaac

"He's going to get himself killed!" Phineas worried and called Isaac on his phone, only to find he had turned it off. Phineas had to step away to try and calm himself down, but peace and tranquillity were hard to find. Not only had he single-handedly caused the end of all human life, but now his eldest son was out who-knows-where in a stupid display of heroism trying to solve his mess. At that point, Phineas just felt like crying, but he had to be strong for his family.

In the sewer system, Isaac was about half way to the museum when he ran into a familiar face. It was Sabrina, daughter of Zack and Melissa Underwood and Daniel's girlfriend.

"Snuck out too, huh?" Sabrina inquired.

"I don't need a lecture. I just need to get to the museum so I can go back and help Daniel" Isaac rebuffed.

"Lectures are Ash's thing. I'm here for the same reason you are" Sabrina countered. Isaac found it hard to argue with Sabrina's desire to go back and help Daniel. In fact, Isaac thought she had more of a reason to go than he did.

"Fine, you can come along. Just follow my lead" Isaac allowed, and the two navigated the sewers until they were next to the museum front gates. After peering out the manhole cover to see if the coast was clear, Isaac climbed out after not seeing any robots, motioned for Sabrina to hurry to the front gates and went inside without incident. Thankfully, the device that his dad had refurbished when he was a boy was still there, and in working order. All that was left was to program the co-ordinates and they were in business. Isaac, however, having developed a sense for danger after hanging out with Daniel for so long, had a feeling that something was amiss. Sure enough, Sabrina looked up to find a CCTV camera pointed right at them and provided Isaac with his answer.

"Earthguard's seen us!" Sabrina yelled, which gave Isaac only minutes to punch in the co-ordinates. The kids could hear robots on the roof drilling their way through, and Sabrina could see a robotic hand come through. "Hurry up!" she urged as the robot which the hand belonged to dropped through the ceiling. Just before they were blasted to smithereens, they got aboard the time device and were sent back to the Flynn-Fletcher house of the past, where Isaac had programmed the vehicle to land.

In the backyard of the Flynn-Fletcher house of the present day, Phineas and Ferb were going over their latest big idea with their usual friends. They had settled on a multi-storey bumper car ring, an idea Buford was especially keen on.

"None of you losers can beat me at bumper cars. I hold the record in five carnivals" Buford bragged.

"Wow, I wasn't aware bumper cars were competitive. I just thought it was a fairground ride" Phineas observed.

"The records are all for longest distance I sent another bumper car flying. It's like throwing a bowling ball" Buford added. For obvious reasons, Baljeet was getting very nervous.

"You will not send me flying too far, right?" Baljeet asked, tensely.

"We'll see" Buford responded. But just before work could begin, something appeared in the middle of the backyard unexpectedly. When it emerged, Phineas recognised it as the time travel device he and Ferb refurbished in Danville museum and subsequently used to go back to the time of the dinosaurs. What he didn't recognise, however, were the passengers. One looked like an older version of himself, but something seemed different, while the other, a teenage girl, bore a striking resemblance to Melissa, Milo's friend.

"Is that one of the bumper cars? You are fast, Dinner Bell" Buford remarked.

"No, it isn't" Phineas replied, with great curiosity. He approached the occupants of the device. Isaac noted Phineas' curious expression and broke the ice first.

"To answer your first question, no, I'm not you from the future, although we do look alike" Isaac assured. Now Phineas had even more questions. Who was this person that looked just like him? When in the future did he come back from? And what was the nature of this visit?

"Maybe we should introduce ourselves before we confuse your father further" Sabrina suggested. Phineas heard this and started freaking out.

"Wait, what did she say?!" Phineas asked in a panicked tone.

"I'm Isaac Flynn, your son from the future" Isaac introduced awkwardly. Phineas just stood there, dumbfounded by what he had just experienced.

"And I'm Sabrina Underwood, daughter of Melissa and Zack Underwood" Sabrina added. Phineas' brain was on the verge of shutting down. It had just been a normal summer's day when his son from the future appeared in his backyard. Could things get any stranger. The next few seconds answered that question for him, when Isabella walked into the backyard through the back gate as she so often did. The sight that greeted her stole her usual catchphrase from her mouth and instead, replaced it with another question entirely.

"What is going on here?" Isabella inquired, after having seen what appears to be two Phineases. On any other occasion, she thought she had stumbled into 'Phineasland' again, but after pinching herself to check she wasn't daydreaming, she now just wanted answers.

"Hi, mum" Isaac blurted out, which caused Isabella's brain to do loop-the-loops, Sabrina to elbow Isaac, and Phineas to do what any normal boy his age would do in this situation. He fainted.

"He took that well" Buford said.

In the future, Earthguard had sent robots to analyse what just happened in the museum. The central core was evaluating the recent events.

RECONSTRUCTING EVENTS. RECONSTRUCTION COMPLETE. VEHICLE REFERS TO TIME TRAVEL DEVICE IN FLYNN FAMILY ARCHIVE. THEORISING POSSIBLE OUTCOMES. COMPLETE. 98.6% PROBABILITY OF THE TWO HUMANS TRAVELLING BACK IN TIME TO ALTER EARTHGUARD DEVELOPMENT. EVALUATING POSSIBLE SOLUTIONS. EVALUATION COMPLETE. MOST EFFECTIVE SOLUTION IS TO CONSTRUCT A TIME TRAVEL DEVICE, SEND A ROBOT BACK IN TIME AND HALT THE HUMANS' MISSION. ESTIMATED TIME TO DEVICE COMPLETION, 2.1 HOURS. DIVERTING RESOURCES FROM FRONTAL ASSAULT TO ASSIST IN THIS TASK.

Author's note: This is the chapter where the OCs that I have created really start to shine. I know what a lot of you reading this are probably thinking, that there are similarities to movies like Terminator and The Matrix. Well, I've always wanted to do something like that, but have Phineas unwittingly create the AI that goes rogue instead of Doof creating something that will help him take over the Tri-State-Area, similar to how I portrayed Candace as the Scrooge character in my Christmas fic. For future reference, if anything is in capitals and there are no speech marks, Earthguard is speaking. I will do my disclaimers as a list from this point forward, since I am using my own OC's.

Daniel and Kathy Murphy, as well as Sabrina and Ashley Underwood belong to me. Isaac, Florence, Maria, and Andrew Flynn also belong to me.

Everything else belongs to Dan, Swampy and Disney. Enjoy.