I do not own "Phineas and Ferb"

I do not own "Gravity Falls"

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P.S Phineas, and Isabella are 14 years old and Ferb is 15

Ch1: I know what we are going to do today

Previously

Two boys sat on the couch watching their favorite T. V. show "Gravity Falls". One of the boys who had an oddly shaped head said "Wouldn't it be awesome if we could be in the show along with the characters." He suddenly got an idea and he looked at his stepbrother who had green hair "Ferb I know what we are going to do today."

Now

Isabella enter Phineas and Ferb's backyard to find them hard at work building work building a machine that looked like the one they built to go to Mars. "Hey Phineas Whatcha doin?" she asked as she batted her eyes. Phineas didn't notice that she was flirting with him as he answered her "Have you ever seen the T.V. show "Gravity Fall"?" she frowned because he once again overlooked her obvious crush on him and Ferb gave her a "I'm sorry" look. "Yes I love that show." She answered and Phineas stopped building the machine "well we are creating a machine that will allow us to insert ourselves into the T.V. show.' He said and she was amazed again at Phineas's creativity "Cool can I help?" she asked and Phineas said "Of course…by the way where's Parry?

Perry silently made his way into his secret lair; he put on his fedora and approached a giant computer monitor. To his surprise Carl appeared on the screen and he was freaking out "Agent P Help Dr. Doofenshmirtz has captured Major Monogram." Perry nodded and he got into his hover car. He busted through a window and he saw Monogram tied up. "Ah Parry the Platypus your presence here is unexpected and by unexpected I mean….COMPLETLY EXPECTED! Dr. Doofenshmirtz said as a cage fell on Parry trapping him. "I suppose you want to know my evil scheme for today?" Dr. Doofenshmirtz asked and Major Monogram tried to say something but his mouth was covered up. Dr. Doofenshmirtz ignored the Major as he approached a giant Television screen "You see one day while I was trying to hack into my neighbors Cable using my Cable steal inator." He points to a box on top of the screen which looked like a regular cable box "I discovered that instead of allowing me to get free Cable my inator allowed me to view alternate universes…..I'm not exactly sure how the inator was able to do that but what's done is done."

Perry got nervous as he wondered how much information Doofensmirtz could have found out from the other dimensions "You wouldn't believe some of the alternate version of us Parry…Like in one dimension you had to act like a mindless animal because you had a family who didn't know about you being a secret agent." Perry gave a confused look hoping that Doofensmirtz wouldn't notice how nervous he was "I know it's crazy right" Doofensmirts said "Anyways I started to notice a disturbing trend." He said as he started to pace back and forth in front of the screen "In every dimension I always lose and I was just about to give up my lifelong goal of ruling the Tri-State Area because I thought I would always fail but then I found this…" He said as an image appeared on the screen that showed another Doofensmirtz except the 2nd Doofensmirtz was dressed in all Blake and he had an eye patch that had a scar going over it. "It turns out that in this 2nd dimension I was successful in taking the over the Tri-State Area but for some reason the 2nd dimension me turned good and know he is in jail but that's not even the worst part…I heard he might get out soon on good behavior can you believe that." He said and Parry remembered the Epic adventure he had with Phineas and Ferb before their memories were erased.

"SO I decided to created my other dimension ray inator." Parry looked confused "It fires a small portal that briefly connect our two dimensions and once I'm there I will use my combine inator (the inator from "Candermy") which I have modified to combine the 2nd Dimension version of me with the original and I will have all of his knowledge of how to take over the Tri-State Area." Doofensmirtz suddenly took an exhausted breath "Wow I think that is one of my longest plans to date Parry the Platypus" he said and Perry nodded.

Doofensmirtz started to power up the machine which needed to charge and he didn't notice Parry as he started to cut the bars on the cage. Majpe Monogram was able to move his mouth out of the gag and he asked "I get your complex plan but why did you kidnap me?" Doofensmirtz said "because I figured that if I take you with me to the 2nd dimension and I leave you trapped there and your organization without a cool Acronym (O.W.C.A) will have no leader which will make it easier to take over the Tri-State Area" He said and suddenly he heard the cage give in as Parry escaped. Parry and Doofensm they started to fight and Dr. D accidently hits a button that made his laboratory suddenly turn into the Doofensmirtz blimp which took off into the city. Perry started to hit Dr. D when suddenly he noticed that they were flying over Phineas and Ferb's backyard. Doctor D. suddenly got away and he fired the inator which hit the boys' machine. "You lose Parry the Platypus." He said as he jumped into the portal leaving Parry to free Major Monogram and they both followed him into the portal.

Meanwhile in Phineas and Ferb's backyard

"You guys ready?" Phinease asked and Ferb gave a thumbs up while Isabella nodded. "Make sure we keep our hands together so we don't end of in different locations."" Phinease said as he grabbed Ferb and Isabella's hand. Isabella was ecstatic that Phineas was holding her hand and they all stepped into the portal. They tried to keep their hands together as they were spinning wildly around but then Dr. Doofensmirtz crashed into them and their hands got separated "Phinease!" Isabella screamed as she was separated from him and she heard him scream her name back but suddenly they were all mysteriously knocked out as they reached the end of the portal and none of them saw the triangle shaped man as he said "It has begun."

ME: Done

Dipper: I guess this makes a good 1st chapter

Phineas: But won't people notice that me, Ferb, and Isabella are gone?

ME: No they will be as oblivious to your disappearance as you are to Isabella's love for you

Phineas: What Isabella's not in love with me

Dipper: Is he like that all the time?

Isabella: Yes...Yes he is

ME: You have my Condolences

Isabella: Thanks