Doofenshmirtz had just made it back to camp when he saw the blood trail. Cursing under his breath he hastily started searching for something to patch himself up with. He really had not planned to be in this predicament and had not brought any medical supplies. However he was a doctor and he would fix himself up. Surveying his surrounding he was pleased with what he had to work with.

Quickly, he grabbed some long, thick grass and tied them together to make a sturdy rope. He then tore off a large portion of his suit and wrapped it around him covering the wound. Tying the grass rope around the suits fabric created a lot of pain but it did help stop the bleeding. After a few minutes he was satisfied with his job and quickly got his gun. He knew Phineas would follow the blood trail and he would follow it right back and meet him. Doofenshmirtz exited camp determined to meet Phineas.

(Danville: one and a half years after Phineas and Doofenshmirtz left)

"Hey Isabella" Ginger and Holly both spoke in unison.

"Meet Alex" They both pushed Alex towards Isabella.

Alex stood about 4 foot 5 and was a teen heart throb at school. Almost every girl had a crush on him but for some odd reason he was drawn to the one girl who showed no interest. The fire side girls had tried desperately to get Isabella to date someone and went through almost every guy in school before ending with their trump card Alex.

"Hey, Isabella. I was wondering if you wanted to go to the school dance with me this Friday?" Alex smiled his best smile

Isabella who had been, up until this point, not paying attention turned around from her book and faced him. She was actually shocked at what she saw. Alex was well built and was very charming. His features rivaled only that of Phineas in her mind. She realized she was staring and turned away quickly with a mad blush on her cheeks.

"Sorry Alex. You are sweet but I am waiting on another boy to ask me" Isabella tried to make it look like she was reading again so they would leave.

"Oh come on Isabella. Phineas isn't coming back for a stupid dance. He didn't come back last year and he won't come back this year. You have got to stop mauling around over him and move on" Gretchen said as she walked up from a distance. She was listening to the conversation and decided she needed to act.

"I said no" Isabella didn't even look up from her book.

"Chief…" Isabella cut her off

"I SAID NO" Isabella still didn't look up from her book but her tone told the other girls to leave. Although they were upset with her attitude she was still the chief and the three girls decided to depart. Alex wasn't far behind. Isabella sort of scared him.

"Why didn't you say yes girly?" Isabella looked up to see Buford and Ferb standing close by

"You just don't understand" Isabella now realized why Ferb read so much. It allowed him to make limited conversation and redirect her attention away from her thoughts.

"I wouldn't would I?" Buford just stopped. He knew nothing he could say would change anything and he was fairly certain he would end up in a cast if he continued

Ferb on the other hand decided to sit down next to Isabella and produced his own book. He knew she wasn't in the mood to talk right now but only he had the patience to wait her out right now. He opened his book and began reading.

"I'll see you guys later I got some things to take care of" Buford just left the two sitting their

Ferb knew she would talk, he just didn't know how long it would take. He was praying to finish his book first though.

(Other Dimension)

Phineas had stopped looking for Doofenshmirtz after the incident at the watering hole. He now only kept a few spears on him for self-defence and only made trips out when he needed food, water or to use the bathroom. The rest of the time he just spent working out. Doing push ups, sit ups and other various forms of physical activity. He was pleased with the results.

He had been outgrowing his old clothes and so redesigned them to fit his larger body type. His new wardrobe was a crude sewing job of his shirt and pants to making for free flowing trousers, he no longer needed a shirt. He was still relatively short standing at about 4 feet but thanks to working out over a year he now had quite the build to him. Although not very noticeable he was quite strong for his age. He was also faster than he used to be. He was proud of himself and every now and then when he had some down time he would try and figure out the tracking device on the wrist transporter.

It was about mid-morning right after he returned from gathering water that he decided to take another crack at the tracking system. He sat down near the mouth of the cave and looked at the device attached to his arm. The band had been made out of a rubber like steel substance. It would expand and contract with the wearer but was also very strong and not easily broken. He had spent the last while working hard to crack it, and seeing Doofenshmirtz had not found him yet he was certain he still hadn't cracked it either. He knew it would be something obvious, easily over looked but always right there in front of you, but what?

The device was quite simple in design. It was oval shaped with a large glass screen in the center that would blink a blue light every few seconds. He timed it perfectly; the light would flash every 3 seconds on the dot. He didn't know why he needed that information but he figured it out just cause he could. Now to the more pressing matter; how was this supposed to be a tracking device?

He found staring at it did nothing and yet that is what he usually resorted to doing as if the answer was going to jump out and slap him in the face. That never happened of course all he got was a blinking light. Blue…three seconds later…blue…three seconds later…blue. It was a never ending cycle. All it told him was that Doofenshmirtz was still alive and that didn't matter. He heard a rustling outside the cave.

Phineas shot up and grabbed a spear from the ground, he was down too three as he discarded the rest for fear they be used against him. Phineas quickly dropped to the ground and lay prone. Slowly lifting his head to look out the mouth of the cave. Although it was windy he couldn't hear any bushes rustling and didn't see a reason they should be. He started getting paranoid as he observed his surrounding and then slowly slumped back inside the cave. He wouldn't let go of the spear.

Phineas cautiously returned his attention to the wrist device but never put his weapon down. He began tapping the screen with the tip of his spear in unison with the blue light. For the next few seconds, every three to be exact, he would tap the screen just as the blue light came on. He also had his ear trained on the mouth of the cave just waiting for another noise. He was half distracted and didn't realize what he was doing when he started taping the screen every second. That's when he noticed it.

Every time he tapped the screen the blue light would flash. The three seconds was a default but the light would flash whenever you touched the screen. He threw his head back wondering how he ever over looked that. It was so simple. It was obviously a sort of code within a three second interval that Doofenshmirtz had input to access the tracking system. That was why the default flash was three seconds. Now all he had to do was figure out the code.

It would obviously be something Doofenshmirtz would remember pretty easily but what? Phineas tried to think of what Doofenshmirtz would input within a three second time frame. It could be a date, name or anything that could be translated into a quick tap of the screen. Phineas started to focus more and more attention to the device but always kept one ear open for any movement that he didn't make.

The wind had picked up and he was now hearing a lot of rustling coming from outside the cave. He decided to focus what little attention he had on sounds that could only be made by an animal, or human. His ears searched for footsteps or heavy breathing while the rest of him focused on the device.

The code would have to be quick and instant, and knowing Doofenshmirtz, fairly easy. He started with simple tests such as tapping the screen every second and then every two seconds. He followed by tapping the screen a second after the blue light flashed and a second before the next blue light. After, he tried tapping 2 seconds in between flashes and still nothing worked. He was running out of ideas when he remembered something. They had beaten Doofenshmirtz on three separate occasions and each time was different. The first time it was him and Perry against Doofenshmirtz, the next time it was him, Buford, Isabella and Perry as a team. The final time was him, Buford and Ferb; he only counted people involved in the actual fighting. 2 people beat him then it took 4 and then 3. Phineas decided to try some math.

2X4-3=5.

"That can't be right" Phineas began thinking up as many possibilities as he could.

2-4-3=-1

2+4-3=3

2/4+/-3=5/-1

"None of these are useable" Phineas was starting to frustrate himself. Maybe the answer wasn't in how many people they had but how many people Doofenshmirtz had. Let's see, he had himself then he had him and me then him and Baljeet" Phineas just dropped his head as he realized these were too complicated. The answer was so simple it was impossible for him to figure out.

"Why three" Phineas began pondering. "What was so special about three?" Phineas started thinking again and still couldn't get an answer.

"Stop thinking logically and just think stupid now" He punched himself in the head, which hurt by the way.

He began tapping the device again counting to three out loud.

"One…two…three…one…two…three…a half…one…one and a half…two…two..." Phineas's eyes shot open. There was no way it was so simple. How could it be? Not even he would think of it in a million years had he tried to think rationally. He looked down at his device and started to time the seconds.

"Half" It took half a second to lose his first fight when his other self gave him that train. In a way he had wasted half of a full second and if his calculations were correct that would account for six months.

"One" He spent one year in jail before breaking out and returning to fight them again.

"One and a half" He pushed the screen. It took him a year and a half to plan everything out to the last detail. Too plan his revenge. Too get him to the point where I would cross the other dimensionator.

The screen flashed blue and then it stopped. And soon a blinking blue dot appeared in the middle of the screen "That must be me…and it looks like it's searching for the other device" Phineas said as he watched the screen awaiting its response.

Doofenshmirtz had timed it three seconds because every half a second represented six months. And each second a year. It would be so simple to remember pushing the screen exactly half way if you knew what to look for. The next one and a half years would be used to take over Danville again. The middle of the cycle was the present day. The screen flashed back a red dot.

"That must be him" Phineas studied the dots

"That can't be right…they are overlapping…but that would mean" Phineas turned around and was staring down the barrel of a gun.

"I found you" Doofenshmirtz pulled the trigger.

(Danville)

"So Isabella if you are not going to the dance with a date then how about you go with me and we can just hang out?" Ferb had finished his book in record time and decided waiting time was over.

Isabella didn't respond at first but she kept her head buried in her book.

Ferb just waited patiently for a response.

"We would go as friend's right?" Isabella asked through the book

"Of course it would be an opportunity to get your mind off this whole ordeal and maybe get some fun back into your life" Ferb got up

"Ok" Isabella squeaked as she buried her head deeper in her book trying to hide her face from Ferb

"I'll see you in two days" Ferb left Isabella who had now lowered the book and was sitting alone. This was going to suck; was all she could think.

(Other Dimension)

Phineas did a half roll half lung to the ground a split second before the gun went off. He swore he felt the bullet graze him but he didn't have time to check himself. He didn't want to risk attacking with his spear and striking Doofenshmirtz, or worse, making him back away and get an actual shot off. Instead Phineas jumped to his feet and grabbed the barrel of the gun with both hands throwing him and Doofenshmirtz outside the cave.

They both rolled down a slight hill and onto level ground, neither one of them releasing the gun. Two more shots were fired but both went in a different direction and away from the two fighting for it.

Doofenshmirtz was surprised at how strong this boy had become in the short time they had been here. He realized that this whole time his only real workout was walking around trying to find Phineas but Phineas had obviously been using his time more valuably. With a quick roll Doofenshmirtz now lay on top of Phineas and was desperately trying to force the barrel of the gun down.

Phineas however saw this and slowly, without sacrificing grip, brought his hand up to Doofenshmirtz's trigger finger. Phineas then began forcing Doofenshmirtz to pull the trigger by applying pressure on and off. A total of five shots were fired before Doofenshmirtz wiggled Phineas's finger free of the trigger. Doofenshmirtz knew he only had a few shots left and this was frightening to him because he had once again underestimated Phineas and had left any other weapon he might have had back at camp. He was so sure he could just end it with a gun that he became foolish and was now paying the price.

Phineas on the other hand wasn't sure how many shots the doctor had left but by how much effort he was using to still push the barrel in his direction Phineas knew there was at least one. He knew Doofenshmirtz would never let him get his finger back around the trigger so he had to come up with a new plan. A sharp pain in his groin cut him off though as Doofenshmirtz quickly brought a knee to Phineas's groin. The pain was unbearable but Phineas still didn't release his hold of the gun. He watched as Doofenshmirtz brought his knee up again and noticed he had all his weight balanced to one side.

Phineas quickly shifted all his weight to the left and sent him flying upward and on top of Doofenshmirtz. Without hesitation he threw all his might into lowering the gun and then brought his head down on the bridge of Doof's nose. Both cried out on pain.

Doofenshmirtz and Phineas had dropped the gun and were now rolling around massaging their heads. Doofenshmirtz was bleeding from his nose while Phineas had struck his eye on Doofenshmirtz's chin, and it struck hard. Neither of them realized the other had dropped the gun until they looked at each other. Phineas through his one good eye and Doofenshmirtz with his hand holding back a bunch of blood. The gun was laying closer to Doofenshmirtz and both knew it, which caused the mad doctor to smile and lunge for the gun. Phineas did the only thing he could think of…He got up and started to run.

Doofenshmirtz quickly seized the gun and fired off four shots at Phineas. The first two went wild but the third had struck Phineas right in the back of his left leg. The forth shot also went wild but the third was all that mattered. It was a clean shot as it went right through his leg but it didn`t stop him. As soon as Doofenshmirtz saw Phineas continue to run he forced himself up and started chasing him.

"You can run Flynn but the end is here. Come and face me now…come and face DEATH" Doofenshmirtz called out as he started a jog towards his rival

The words stung Phineas almost as much as his leg stung from the bullet that just tore through his flesh. He never stopped moving though. He could hear Doofenshmirtz closing in on him though. He couldn't stop, he wouldn't stop.

"STOP RIGHT THEIR OR I'LL SHOOT" Phineas froze…Doofenshmirtz was only a few yards behind him and he knew at this range, with his leg in this state, there would be no missing. He felt the smile creep across the face of Doofenshmirtz as he heard the trigger being pulled. He closed his eyes.

Click

Phineas's eyes shot open when he heard that. He knew exactly what that sound meant. The gun was empty.

Turning on his one good foot Phineas turned to face Doofenshmirtz.

"Put that gun down and fight me one on one like you promised all those months ago" Phineas was now furious

Doofenshmirtz realizing the gun was useless decided to discard it. Throwing it into the tall grass to his right he stared down Phineas.

"I didn't think I would be stuck here this long. I thought I could kill you in a few hours and then return to Danville and reclaim what was rightfully mine" Doofenshmirtz started a slow walk towards Phineas.

"You were a fool. All you cared about was power and never gave any thought to the people you hurt" Phineas started a hobbling walk towards the doctor.

"HAH! You never cared about anyone other than that girl. Admit it Phineas, you are as shallow as me, only thinking about what will make you happy. I bet I could have killed you friends, your brother even your family and that pet and as long as I spared that girl you would have been ok with it all" Doofenshmirtz was now a few feet away from Phineas and stopped

"YOU LIE!" Phineas shouted

"ADMIT IT. YOU CARE ONLY ABOUT YOURSELF AND YOUR HAPPINESS. PHINEAS FLYNN YOU ARE JUST LIKE ME" Doofenshmirtz had started laughing at this and threw his head back.

Phineas was now beyond fury he was straight up pissed off. He surveyed his surroundings. To his left was tall grass which he could use to escape…SCREW ESCAPE. Turning around was no option either and Doofenshmirtz would not run away. This was their final stand. Phineas looked to his right as Doofenshmirtz continued to laugh and found they were actually on the edge of a cliff. He knew what he was going to do.

The next thing Doofenshmirtz knew Phineas had tackled him to the ground. Phineas began throwing punches one after the other targeting Doofenshmirtz's face, torso and especially his rib cage.

Doofenshmirtz was surprised at how strong Phineas had become. With each strike it was becoming harder to breath, and he couldn't defend himself against the onslaught. He was pretty sure he heard one of his ribs crack. He tried to roll to his right but Phineas stopped him and kept throwing punches. Doofenshmirtz rolled to his left and found Phineas rolled with him but this was to his demise as he realized Phineas threw himself into the roll and had ended up on top of him again. After another punch Doofenshmirtz heard another rib crack. Breathing was hard and he had to gasp between his teeth. He started tasting blood and knew he was in serious trouble. Then suddenly the onslaught stopped. Doofenshmirtz felt Phineas get off of him and he smiled.

"Still can't kill me huh?" Doofenshmirtz said before coughing up some blood.

"Not quite" Phineas said as he landed a kick sending the doctor rolling. He heard the doctor wheeze for air but Phineas didn't care he was hell bent on finishing this. He kicked him again and this time Doofenshmirtz rolled over the side of the cliff.

Doofenshmirtz realized what Phineas was doing the instant he fell over the cliff. He shot his hand out and managed to grab hold of a stray rock jutting out the side. As he opened his eyes he realized just how dangerous this was. The hole was not a few feet deep but more or less fifty feet. This height would kill him in a heartbeat.

"Still alive?" Doofenshmirtz looked up into the eyes of Phineas. He recognized that look. It was madness and anger overwhelming him. This was bad.

"Please…Please help me. I know a way around the wrist devices. I can send you home you just have to trust me" Doofenshmirtz pleaded as his hand started to slip.

"Why would I trust you after all this?" Phineas was unconcerned.

"Because I am about to die and there is no need for that…What would your parents say if they found out?" Doofenshmirtz lost more grip

"I'd never tell and they would never ask" Phineas was just watching him struggle now

"WHAT ABOUT YOUR GIRLFRIEND? SHE'D KNOW IF YOU WERE LIEING RIGHT? NOW PLEASE HELP ME!" Doofenshmirtz screamed as he almost lost his entire grip

Realization came flooding back into Phineas. This wasn't him. How could he return home and face his friends, his family, his…Isabella if he killed someone in cold blood. He couldn't, if he did kill someone on purpose he would just transport himself to a different dimension to live out the rest of his life alone. He would abandon everyone.

"HELP ME!" Doofenshmirtz lost all grip but never fell. When he looked up he found Phineas had grabbed his arm and was holding onto another rock for leverage.

"How do you get around the wrist devices?" Phineas asked quickly.

Doofenshmirtz smiled and wrapped his hand in a death grip with Phineas's.

"You know when I transport back to your dimension I am going to appear in your back yard. It will be such a treat to watch as your friends and family see me emerge as the victor. I said there was a way around the wrist devices and I didn't lie. The way around them is that one of us has to die and that one is you" Doofenshmirtz pulled himself up and then let all his weight fall as he yanked Phineas towards the edge of the cliff

"YOU IDIOT! YOU'LL DIE TOO!" Phineas screamed as he started losing his grip on his rock

"No, I will simply make sure you die first and it'll only take a split second to imagine your back yard and be transported their" Doofenshmirtz again pulled himself up and let his weight draw Phineas closer.

Phineas released his hold on the doctor but Doofenshmirtz still held onto him. As Doofenshmirtz brought his weight up again ready to drop and send them both down to their death Phineas realized something. All he had to do was get free of the doctors grasp and then he would be the winner. He wouldn't have killed him but rather Doofenshmirtz would have committed suicide. He would not be a murderer. Phineas knew what he had to do.

Before Doofenshmirtz dropped his weight Phineas let go of the rock. He let go just as Doofenshmirtz dropped his weight and Phineas's hand slipped out of his grasp. They were both plummeting towards death but only one of them was going to die.

As they fell they each thought of Phineas's back yard.

One for Revenge and one on his way home.

A split second would decide the fate of everyone.

(Danville)

"Alright let's get going. I'm hungry" Buford stood up

"We ate 20 minutes ago" Ferb stated

"Yeah but I'm still hungry. Let's go and get some snack for the movie" Buford began walking towards the gate

"I guess we have no choice now" Isabella stood up and followed with Ferb close in tow.

"Buford slow down" Isabella called as she saw how far ahead he had gotten once they reached the front yard

"This'll be fun" Ferb put his hand on Isabella's shoulder to show he was happy she decided to join them.

"Yeah" Isabella said as her and Ferb raced to catch up to Buford.

Nobody noticed the flash of blue emanate from the back yard of the Flynn-Fletcher house.