It's been 261 days since the last summer vacation, and all the fun ideas and activities stepbrothers Phineas Flynn and Ferb Fletcher had created together. And since their older sister, Candace, had failed numerous times to bust them to their mother, Linda. And now, only one year had gone by, and the kids had already finished school. Phineas and Ferb still had their next ideas to come, and Candace still had her next chances on getting them busted. But, what nobody knew was - mostly for Phineas and Candace - that all of that was about to change forever. Because one morning, on Friday...
Wait... I'm getting ahead of myself here. If all of you fans would like to understand our story, we'll need to go back. Back to the day before - the first day of summer vacation...
Thursday Morning, First Day of Summer
Phineas and Ferb, along with Perry, were still sleeping in their beds as morning approached.
Phineas' alarm clock had just got to 7:00 a.m. With that, a mechanical arm emerged out of the alarm clock, and gently poked Perry, waking him up.
Perry responded with a chatter.
Phineas opened his eyes. "Good morning, Perry," he smiled. Then, he looked over at his calendar, and gasped. "Yes!"
Another school year had come and gone by, and it was finally the first day of summer, again.
"Hey Ferb!" Phineas grabbed his pillow, and threw it at Ferb, who was still sleeping.
Ferb sat upright. He opened his eyes as Phineas walked over to him.
"It's the first day of summer!" cheered Phineas. "Finally, another three months to make the best of every day! And I know what we're gonna do today!"
The boys got dressed to prepare themselves for the day.
"Today is Gonna Be a Great Day" (Full Version)
(Bowling For Soup)
"There's a hundred and four days of summer vacation,
'Til school comes along just to end it,
So the annual problem for our generation,
Is finding a good way to spend it,
Like maybe,
Building a rocket, or fighting a mummy,
Or climbing up the Eiffel Tower,
Discovering something that doesn't exist,
Or giving a monkey a shower,
Surfing tidal waves, creating nanobots,
Or locating Frankenstein's brain,
Finding a dodo bird, painting a continent,
Or driving our sister insane,
This could possibly be the best day ever,
(This could possibly be the best day ever!)
And the forecast says that tomorrow will likely be a million and six times better,
So make every minute count, jump up, jump in, and seize the day,
And let's make sure that in every single possible way,
Today is gonna be a great day,
Crossing the tundra or building a rollercoaster,
Skiing down a mountain of beans,
Devising a system for remembering everything,
Or synchronizing submarines,
Racing chariots, taming tiger sharks, constructing a portal to Mars,
Building a time machine, stretching a rubber tree, or wailing away on guitars,
(Oh, man)
This could possibly be the best day ever,
(This could possibly be the best day ever!)
And the forecast says that tomorrow will likely be a million and six times better,
So make every minute count, jump up, jump in and seize the day,
And let's make sure that in every single possible way,
Today is gonna be a great day,
Hey! (8x)
Let's put our heads together and design a master plan,
We may miss dinner, but I know Mom will understand,
We've got our mission and some pliers, yogurt, gumballs, and desire,
And a pocket full of rubber bands, the manual on handstands,
A unicycle, compass, and a camera that won't focus,
And a canteen full of soda, grab a beach towel, here we go,
(This is Ferb-tastic!)
This could possibly be the best day ever,
(This could possibly be the best day ever!)
And the forecast says that tomorrow will likely be a million and six times better,
So make every minute count, jump up, jump in and seize the day,
And let's make sure that in every single possible way,
(Seriously, this is gonna be great!)
This could possibly be the best day ever,
(Today is gonna be a great day!)
This could possibly be the best day ever,
Today is gonna be a great day!"
"So, what are we going to do, today?" asked Ferb.
"Oh, trust me," Phineas replied with a wink. "I know, for sure, what we're gonna do, today."
While the boys were distracted, Perry's wristwatch communicator started to beep. It was signaling a code red emergency. Before the boys could notice, Perry quickly scampered away.
Hearing the beeping, Phineas and Ferb looked around to see where it came from. Only to discover...
"Hey, where's Perry?" asked Phineas.
"Never gets old," Ferb said to himself, rolling his eyes.
Meanwhile, Candace was sleeping in, as usual.
Having failed to bust her brothers the last summer vacation, Candace just couldn't take it anymore. She eventually forced herself to give up when school started. Now, presumably, whatever idea her brothers would create for today, and how it would mysteriously vanish, she knew she would fail to bust them once again.
She turned over on her other side.
Linda opened Candace's bedroom door. "Candace?"
"Leave me alone," Candace groaned. She buried her head under her pillow.
"I just wanted to let you know I'm off to get my hair done, and I've left the phone number on the fridge in case of any emergencies."
"Whatever," mumbled Candace.
"Oh, and Candace, honey?"
Candace finally sat upright with her eyes half-open. "What?" She snapped.
Linda flinched at her daughter's outburst. "I hope you're not gonna spend the rest of your day in bed." She smirked, before finally leaving.
Candace scoffed. "Like I've got plans, anyway," she mumbled under her breath, before lying down in bed again.
But just as she dozed off again, her pink cellphone rang.
Groaning in dismay, Candace reached for her phone. "Hello?" She mumbled.
"Hey, Candace." It was her best friend, Stacy Hirano.
"Oh, hey, Stace, what's up?"
"Uh, didn't we make plans and agree to meet up at the mall, today?"
Candace's eyes widened, finally waking up. Plans? Mall? Oh my gosh, I forgot! She thought to herself.
"'Cause I've literally been waiting outside, for like, ten minutes."
Sitting upright, Candace blurted, "Stace, I am so sorry! I'm on my way, right now!" Then, she hung up the phone, tossed it aside, and leaped out of her bed. She ran down the hallway to the bathroom to take a quick shower, not even bothering to close the door all the way.
At that same moment, Perry was approaching the bathroom in pet-mode. Looking around to make sure the cost was clear, Perry stood up on two feet, putting on his fedora. With that, he started to open the door to the bathroom, only to find Candace half-naked. His eyes widened in astonish and disgust. Perry hastily reverted back to pet-mode just as Candace noticed him.
Candace screamed. "PERRY!"
Perry simply chattered.
"Since when do you start walking in on people in the bathroom, like that?!" Candace shooed Perry away with her foot, before slamming the door shut.
Perry shivered, upon having seen Candace naked. For sure, he never wanted to see a naked teenage girl again. He briefly mocked Candace's outburst on him. Deciding not to waste time to find another of his secret lair entrances, Perry pulled out a black hole from his fedora, and slapped it on the wall. He climbed through it, and then took the hole with him.
In no time at all, Perry dropped into his chair in his lair. On the monitor in front of him, read "Incoming Message" in big red letters. The platypus answered the incoming message. On the giant screen came his boss, Major Francis Monogram.
"Good morning, Agent P," Major Monogram greeted. "Sorry to bother you on your day off, but Dr. Doofenshmirtz has just activated the -inator alert system. We think we may have returned to evil."
Perry became worried when he heard that. He thought that Dr. Heinz Doofenshmirtz, his nemesis, had given up on evil for good, after his last attempt to take over the Tri-State Area had gone through some time loops. How that was possible, Perry did not know.
"I know what you're thinking," said Major Monogram. "We, too, thought he had given up on evil for good."
"I told you he'd come at it again, sir!" Carl's voice came from offscreen the monitor.
Carl was Major Monogram's assistant and cameraman. He worked at the O.W.C.A. (Organization Without a Cool Acronym) for college credit.
"Zip it, Carl!" Major Monogram harshly commanded. "Anyway," he continued, "your mission is to find out, and stop whatever it is he's got in plan. Good luck, Agent P."
Perry saluted, as if to say 'You can always count on me!' He leapt out of his chair, climbed into his flying automobile, and flew off.
"Perry the Platypus Theme Song" (Extended Version)
(Backing Scat)
"Doo-bee-doo-bee-doo-bah (x5)
Doo-bee-doo-bee-doo-bah, (Yeah!)
Doo-bee-doo-bee-doo-bah
Doo-bee-doo-bee-doo-bah, (C'mon!)"
(Female Singers)
"Perry!"
(Male Singer)
"He's a semi-aquatic egg-layin' mammal of action, (Doo-bee-doo-bee-doo-bah x2)
He's a furry little flatfoot who'll never flinch from a fra-ee-ay-ee-ay,
He's got more than just mad skill, (Wah-ah-ah)
He's got a beaver tail and a bill, (Ah-ah)
And the women swoon whenever they hear him say..."
(pause; Perry chatters and women swoon)
(Male Singer)
"He's Perry! Perry the Platypus!
Perry! Perry the Platypus!"
(Female Singers)
"Doo-bee-doo-bee-doo-bah (x8)"
(Male Singer)
"Well he's lookin' real sharp in his 1940s fedora. (Doo-bee-doo-bee-doo-bah x2)
He's got an iron will, nerves of steel, and several other metal-themed attributes,
His fur is watertight, (Wah-ah-ah)
And he's always up for a fight, (Ah-ah)
So when evil hears this sound, it shakes in its boots,"
(Perry chatters)
(Male Singer)
"He's Perry! Perry the Platypus!
Perry! Perry the Platypus!"
(Instrumental)
(Male Singer)
"He's got more than just mad skill, (Wah-ah-ah)
He's got a beaver tail and a bill, (Ah-ah)
And the women swoon whenever they hear him say..."
(Perry chatters and women swoon)
(Male Singer)
"He's Perry! (Perry!) Perry the Platypus!
Yeah, Perry! (Perry!) Perry the Platypus!
Talkin' 'bout Perry!"
(All)
"A-gent-P!"