(One day, it was the first day of Summer. Milo Murphy wanted to build a invention)

Milo Murphy: "So Melissa. What are you gonna do today?"

Melissa Chase: "I don't know! Remember that time since we watched a pilot episode of Phineas and Ferb. I'll never wanna watch it again!"

(Flashback after the Rollercoaster episode of Phineas and Ferb. Milo and Zack did expressions and commentaries)

Milo Murphy: "Wait a sec? Melissa, doesn't that mean that Phineas and Ferb's coolest coaster ever destroyed your science project and give you a fear of rollercoasters?"

(Melissa felt shocked in realization)

Melissa Chase: "All this time… Phineas and Ferb built a rollercoaster, then smashed my science project and gave me a fear of rollercoasters…"

Zack Underwood: "It was Perry the Platypus' act and mission that did this."

Melissa Chase: "Phineas and Ferb! You're going down! Down! Down! Down! D-O-W-N Down!"

(Flashback ended)

Melissa Chase: "That is why I hate Phineas and Ferb!"

Milo Murphy: "What about Zack? (At Zack) What would you do?"

Zack Underwood: "I don't know. Today's the first day of summer alright."

(Cut to Heinz Doofenshmirtz bringing the random inator that he invented)

Heinz Doofenshmirtz: "Ahh… It's the first day of summer. And I was trying to carry my other-dimension-inator. No one should see my secret and-"

Milo Murphy: "Hey Dr. D! What kind of inator is that?"

Heinz Doofenshmirtz: "It's a secret that OWCA don't want you to know. Since Perry the Platypus' cover is blown. We have to forget about it, ya know."

(Heinz Doofenshmirtz whispered to Milo about a other-dimension-inator)

Milo Murphy: "(whispering) An other-dimension-inator?"

Heinz Doofenshmirtz: "(whispering) Yes, an other-dimensional-inator that can allow us to visit parallel universes and other dimensions. I remembered visiting the 2nd Dimension and got banished by my counterpart."

Milo Murphy: "Say. I remembered watching the Phineas and Ferb movie Across The 2nd Dimension and-"

Melissa Chase: "I said no Phineas and Ferb moments."

Milo Murphy: "I know what we're going to do toda-"

Melissa Chase: "Ugh! No Phineas and Ferb puns!"

Bridgette Murphy: "Milo, everyone. I'm heading to the grocery store with Dad. Sarah is on a date with her boyfriend at the Slushy Burger."

(Bridgette Murphy left the house to head town)

Milo Murphy: "Let's help Dr. D calibrate the Other-dimension-inator and no self-destruct buttons."

(Cut to Milo Murphy and his friends helping Doof calibrate the Other-dimension-inator)

Heinz Doofenshmirtz: "Behold! The Other-dimension-inator! Self-destruct buttons not included."

(Milo Murphy put the final piece to attach onto the Other-dimension-inator. And Doof pushed the button. The Other-dimension-inator opened the portal to a parallel dimension)

Heinz Doofenshmirtz: "Behold! The mind-blowing first images beyond our reality! The 2nd Dimension!"

(The portal revealed the 2nd Dimension about Danville-2D as a post apocalyptic wasteland under a sandstorm)

Heinz Doofenshmirtz: "I don't understand this. I thought that the 2nd Dimension is about me as a smart ruler. And then this!"

Zack Underwood: "Don't you get it? Open your eyes! A ruined Tri-State-Area under a sandstorm, and some strange tower that was located the same as Doof's tower."

Milo Murphy: "Wait a sec. I remembered Tales From The Resistance. The colors of the city are colorful and grey after the fall of 2nd Dimension Heinz Doofenshmirtz. But what happened to the 2nd Dimension Tri-State-Area? I just saw that the Resistance has rescued the animal cyborg agents and the 2nd Dimension Doofenshmirtz family running from the law. And then this!? And that cylinder tower might be replacing the Doofenshmirtz Evil Inc. in the 2nd Dimension."

(Milo Murphy pulled the chain to open the stash of hazmat suits along with the smug smile)

Heinz Doofenshmirtz: "Good thing that I build the portable version of the Other-dimension-inator in fact when in an emergency."

(Cut to Milo, Melissa, Zack, and Doof in hazmat suits heading to the 2nd Dimension in Danville-2D during a sandstorm)

Zack Underwood: "I prefer our dimension."

Milo Murphy: "Calm down Zack. We do alot of exploring and then return back to our-"

(Then, Murphy's Law malfunctioned the Other-dimension-inator)

Milo Murphy: "... dimension."

(Until the Norm Bots appeared but in different version)

Heinz Doofenshmirtz: "Oh jeez! I thought the Norm Bots were all destroyed. Until the new version of them came from the dead!"

? Norm Bot: "Are you the 1st Dimension people?"

Milo Murphy: "Yes, we're from the 1st Dimension."

? Norm Bot: "Follow us. Our leader of the Tri-State-Area is waiting for you."

Zack Underwood: "Okay. Yeah, that's fine."

(The ? Norm Bots lead the 1st Dimension people to the strange tower and went inside and heading into the elevator and went out)

(The gate lead to the leaders' room opened)

? Norm Bot: "Evil Resistance Terrorist Group Leader Candace Flynn! We have guests."

(Candace Flynn-2D appeared in her desk)

Candace Flynn-2D: "Humph! So you're the 1st Dimension people that appeared in our dimension? You don't look like the boys, the platypus, and that goofy pharmacist so-called Doofenshmirtz?"

Milo Murphy: "Hi Candace. I'm Milo Murphy, this is Melissa and Zack."

Melissa Chase: "I'd think this is a bad idea."

Candace Flynn-2D: "Sit down! It was a long time ago… During Doof's reign in my dimension, the 1st Dimension people came to our dimension to defeat Doofenshmirtz. After the fall of Doofenshmirtz, his ex-wife Charlene tried to reunite his evil dictatorship and Heinz Doofenshmirtz and Charlene with Vanessa running from the law."

Milo Murphy: "Hey! I remembered watching Tales From The Resistance and Across The 2nd Dimension."

Heinz Doofenshmirtz: "Wait a sec! I never expected other dimension Heinz Doofenshmirtz's Charlene, being evil."

Candace Flynn-2D: "Quiet you pharmacist! Didn't I mention that my Resistance and I have saved the OWCA agents except the Pandaborg. Until it was the last day of summer, until the Doofenshmirtz Family rise to retakeover the Tri-State-Area by building a new Norm Bot army and they also trapped the animal cyborg agents with a magnet trap. However, worse than that. The Pandaborg also became Doof's new general of his Norm Bot army. But the most worst of all…"

Zack Underwood: "TELL ME THE MOST WORSE TRAUMATIZING BACKSTORY WORSE THAN OUR DIMENSION DOOF'S BACKSTORY!"

Candace Flynn-2D: "Then, the most worst thing than the Doofenshmirtz Family is… My brothers!"

(Thunderstorm crashes)

Melissa Chase: "Oh boi! Tell me about this Phineas and Ferb busting part."

Candace Flynn-2D: "Busting my brothers? During the final day of summer in my Resistance's final battle against the Doofenshmirtz Family. I tried to defeat Vanessa, who was protecting her family. I tried to protect my brothers Phineas and Ferb. Until Phineas and Ferb joined forces with Doof and Charlene and betrayed me and Vanessa. Ya know, turning Tony Marzulo into a cyborg. Then, Phineas and Ferb hijacked the Normbots, betrayed the Doofenshmirtz Family, and took over the Tri-State-Area themselves. My Resistance and my family broke up. And OWCA banned my Resistance. I still stand heartless. Then, a distortion made the Tri-State-Area collapse as a post-apocalyptic wasteland. Citizens of Danville are forced to leave and move to a new city. So I discovered that distortion known as Murphy's Law, anything that goes wrong, is willing to go horribly wrong. So I found the Milo Murphy in my dimension, being turned into a cyborg and being weaponized. So me and my minions reprogrammed our dimension Milo Murphy to do my bidding. However, I also needed the other dimension Murphy's Law to discover the human soul along with the other human souls, so our Resistance will be unstoppable and to takeover the 1st Dimension."

Milo Murphy: "What!? That's crazy talk."

Candace Flynn-2D: "And now other dimension people. We made a cozy prison cell just for you."

(Isabella-2D and the Firestorm Girls, Buford-2D, and Baljeet-2D appeared as cyborgs to capture the 1st Dimension people)

Milo Murphy: "Wait a sec! These are the 2nd Dimension counterparts of Phineas and Ferb's friends, but as cyborgs!?"

Candace Flynn-2D: "You villain! You haven't learned a thing! In this world… it's kill or be killed. Firestorm Girls! Take the other dimension people to the cyborg programming chamber and extract Milo Murphy's human soul containing Murphy's Law and-"

(Until the chandelier crashed onto Candace Flynn-2D and the rubble fall onto the chandelier and Candace Flynn-2D too)

Heinz Doofenshmirtz: "We've gotta get outta here! Doofenshmirtz is out! Toodles!"

(Milo, Doof, Melissa, and Zack escaped from the Resistance and headed to the elevator)

(Elevator music moment when the Bait Shop theme from Escape From Monkey Island is playing)

(Then the elevator is opened, leading the 1st Dimension people escaped from the Resistance Tower)

Candace Flynn-2D: "Curse you Milo Murphy! This isn't over!"

(To be continued...)