"Ferb, I know what we're gonna do today!" the bright and bouncy voice of Phineas Flynn exclaims. "We're going to build the world's longest mirror maze!"
"World's longest what?" Buford says, entering the backyard, Baljeet not far behind.
"Mirror maze," Phineas repeats. "Ferb, if you would do the honors?"
Ferb shines a pocket-sized laser pointer at a small setup of mirrors from around the house. The beam bounces from mirror to mirror, eventually shining onto a piece of paper behind Ferb.
"You are going to need a lot more mirrors," Baljeet notes.
"And that's where the Fireside Girls come in," Phineas says. "Isabella?"
"We've been working on our environmentally-conscious manufacturing patches," Isabella says. "We made mirrors that dissolve in water yesterday."
"That's an...oddly specific patch," Buford says. "But it sounds cool, so count me in."
Phineas grins, unrolling a massive blueprint. "Alright, so we're going to build this around the entire globe, so we're going to have to work quickly." He pauses. "Hey, where's Perry?"
Perry the Platypus drops down into Doofenshmirtz Evil, Incorporated, accompanied by the usual jingle. Two steps in, and a cage snaps up around him.
The (in)famous Dr. Doofenshmirtz steps out of the shadowy part of the lab and into the light. "Ah, good, you're trapped," he says.
Perry rolls his eyes. Of course he's trapped. They do this nearly every day. Of course he's trapped- it's rarer that he isn't.
"You see, Perry the Platypus, when I was a young child back in Gimmelshtump..."
Perry tunes out the backstory, instead focusing on filing through the bars of the trap surrounding him.
"...and I smelled like pork for the next three and a half years. So to get my revenge, I built this!" Doofenshmirtz pulls aside a large tarp, revealing yet another -inator. "Behold, Perry the Platypus, my sideways-inator!"
With that, Perry finishes filing through the bar of the trap, and bursts out. He launches himself through the air, spinning around mid-flight to whack Doofenshmirtz in the face with his tail.
Doofenshmirtz stumbles backwards and crashes into the inator, causing it to emit a bright green beam of light.
"You better hope that didn't hit anything important," he grumbles, getting up and brushing himself off. He lunges towards Perry, and their everyday fight is on.
"Hey, check this out," Stacy says, laying on Candace's bed and holding up a hand mirror. "If I turn this mirror like this, then I can almost see-"
She's interrupted by a bright green beam coming through the open window of Candace's room, striking the mirror, and bouncing off.
"What was that?" she asks, sitting up and looking outside.
Candace stands up, already fuming as she reaches for her phone. "Phineas and Ferb, you two are so busted!"
The beam of lime green light bounces from Stacy's mirror to the mirror maze, all the way across nearly half the globe. Finally, it hits one slightly-misplaced mirror somewhere around the Mediterranean, and reflects down to Earth. The beam crashes right into a cargo ship carrying all manner of things, from car parts to cattle to coffee.
Surprisingly, Dr. Doofenshmirtz's invention works exactly as intended. The ship turns sideways.
Unfortunately for the global trade economy, the ship is not in the middle of the open ocean, or even in the middle of the Mediterranean Sea.
The ship happens to be named the Ever Given, and it's in the middle of the Suez Canal.
Whoops.
"I can't believe you built a construction equipment rental shop next to the Suez Canal," a woman in a blue ruffled dress says, leaning against the counter of said shop. "The canal is already finished, why would anybody need, for example, an excavator?"
Before her husband can get a rebuttal out, a frantic man in an orange safety vest and lopsided hard hat rushes into the shop. "I need an excavator, right now," he pants. "There's a boat stuck in the canal."
"I stand corrected," the woman mutters, having been proven wrong yet again. Her husband merely pulls the rental paperwork out from under the counter.
The sideways-inator falls off the balcony of Doofenshmirtz Evil, Incorporated, creating an explosion as Perry soars away.
Unfortunately for the many precarious mirrors around, the shockwave from the blast causes one mirror to teeter. It wobbles back and forth for a moment, then lurches forwards into the next.
Each mirror crashes to the ground domino style, breaking into thousands of tiny pieces. All around the world, lawn sprinklers kick on, and the mirrors dissolve.
"Wow," Buford remarks, "that's gonna be a lot of bad luck."
"Do you really believe in such superstitions?" Baljeet asks.
Buford shrugs. "Eh, it depends. At least I didn't break 'em."
At that moment, Candace bursts into the backyard, Linda in tow.
"Mom, mom, mom! Mirrors, mirrors, mirrors!"
Linda sighs, long since used to Candace's antics. "Candace, there's nothing there."
"But-but-but-" Candace sighs, her never-ending quest to bust the boys still unfinished. "Fine."
"Oh, there you are, Perry," Linda says, bending down to pat a recently-returned Perry on the head. "Now, who wants pie?"