Doofenshmirtz was just done with the blueprint for the following day's inators, so he decided he would watch some videos online. He signed in to the website of his nemesis to look for more stuff from him, but he was taken by surprise because he came across a video which the secret agent had posted a year ago under the title "To Doofenshmirtz".

The doctor was perplexed. I'm just an evil scientist, nobody loves me. Why would anyone in this world, let alone Perry the Platypus, want to tell me anything in whatever way?

He clicked on the video anyway. It wasn't like he'd see something more hurtful than his past. It was already so tragic that nothing would suffice to weigh him down more. Besides, since Perry the Platypus was one of the representing figures of what they call "good", Doofenshmirtz did not think he would try to hurt anyone, even someone categorized as "evil" like him.

The video began with Perry playing his guitar, strumming the chords Fm, Ab, Eb, and Db each once. Eh, it must be a song, thought Doofenshmirtz, probably another cover by Perry the Platypus. However, he was proven wrong when the subtitles came out on the screen a few seconds later.

To Doofenshmirtz

Written by Perry

Vocals, lead guitar, and drums by Perry

Rhythm guitar and bass by Pinky

Keyboard and backing vocals by Peter

Recorded by Carl Karl

Production by Perry and Carl Karl

Video by Perry and Carl Karl

"Wait, so it's an original song? And it's about me?" Doofenshmirtz thought he'd gone mad. His nemesis wrote a song directed at him? "Guess I ought to give it a listen, huh?" He said to himself.

As the high-energy, up-tempo intro played, the music video opened with a close shot of Perry playing the drums, but it had only shown his feet and his hands before getting to the second shot, where a pink hand was seen strumming the strings on a bass guitar.

The camera moved to Perry's fretting hand, showing him playing the electric guitar. Yet, because none of those shots showed their faces, Doofenshmirtz wasn't able to identify any of them, including his own nemesis Perry the Platypus.

The video showed Doofenshmirtz sitting up on his bed, unable to sleep, as Perry's voice came. The enunciations were rather clear, and therefore the doctor knew what he was singing.

Midnight, broken down

Unfinished blueprints all around

Playing his red guitar, Perry showed up onscreen along with Pinky, who was playing a purple guitar.

Couldn't fight, 'bout to drown

Try to scream but not a sound

The man was reminded of his personal experiences as he listened to the song, but he was still too oblivious to realize that the lyrics are about him. "I actually have spent some of the nights staying up really late just to finish my blueprints, especially when I was stuck."

Mockery, humiliation

Some of the evil scientist's tragic flashbacks appeared; Perry's tone darkened, whereas Peter sang in falsetto a tenth above. Peter's voice was so faint that it could barely be heard; however, Doofenshmirtz felt like the words being sung were creeping underneath his skin.

Quick flashes of inators exploding and the doctor screaming, "Curse you Perry the Platypus" was shown.

Grudges he's been holding onto

Failure brought more devastation

"You are the one who foils my every scheme, Perry the platypus, and then you put that in a song to me? What, are you trying to brag or something?"

His preposterous imagination

"If this is about me, I have to disagree. Vendor machines taking over is possible, and it's absolutely not a preposterous idea. Or perhaps he wasn't referring to that?"

Soon scenes from Perry and Doofenshmirtz's first encounter came onto the screen.

I was behind that mailbox

You spotted me in a while

"Yeah, right; you didn't know how to hide."

My techniques weren't refined enough

But why you've got that bright, cheerful smile

"Well, I was quite happy that day, but I really don't know why; maybe it was because I didn't face any misfortune that day, or maybe I was actually kind of happy to get a new nemesis." He stopped the video and said to himself, imagining that his nemesis was beside him and that he was explaining to him.

'Cause evil is the last resort

As the chorus played, the video showed Perry, Pinky, Peter playing the guitar, the bass, and the piano respectively. Additionally, the platypus had a microphone in front of him, and he was singing into it. The surroundings were really dark, and strong lights were focused on their faces and arms, sweeping diagonally; thus the scene looked sort of terrifying.

You're only wishing to mask yourself under the darkness

Don't wanna be the one they abhor

"That's pretty accurate, I gotta admit. I always hate the fact that everyone likes Roger more than me! I mean, can you imagine it? Throughout my life, no one loves me, okay maybe except Vanessa, but they all love Roger! My parents, my acquaintances, my neighbours, people in the entire TRI-STATE AREA!"

The doctor caught himself right after the words came out of his mouth," Oh man, I shouldn't have said it that way. It's a different context, although it's the same phrase, it's not taking over I was talking about."

Then he resumed the video as well as the music, and he saw himself in it again.

Couldn't take it so you search for an escape, overstressed

Despised, neglected

Since the day that you were born

When Doofenshmirtz saw a picture of himself in the hospital baby bed with only the medical caretaker aside him, followed by a couple more pictures of him in the Danville forest fed by a mother ocelot who adopted him, he felt like he was hit hard. Memories came flooding in, and he had no means to stop it.

Grumbling, stumbling

Telling me you were so torn

He simply sighed.

You trapped me for the first time

Won't stop rambling 'bout your miseries

"Hey, they're called backstories, you know."

They say you ain't worth a dime

"Roger is always the lucky one, and I'm always the unfortunate one; plus he does most things better than me. Arrgh, I hate him so much!"

Messed up with your intense jealousy

'Cause evil is the last resort

You're only wishing to mask yourself under the darkness

Don't wanna be the one they abhor

Couldn't take it so you search for an escape, overstressed

Perry rolled a grand guitar solo with seemingly impossible techniques. On the screen, Doofenshmirtz was shown getting embarrassed and humiliated by people around him. There were also some more scenes from the times when he was defeated by his nemesis.

Evil is the last resort

Perry sang in ad libitum on the last syllable as the final Ab major chord played, dropping from a high chest voice and then climbing up to his falsetto voice. The video ended with a shot of the three animal agents; Perry was holding a microphone with both paws, whereas behind the platypus, Peter and Pinky were standing face to face.

The man was speechless. Not only was he astonished by Perry's musical ability, but he was also overwhelmed by the message delivered to him through the song. He did not want to believe it, and yet he could never deny it, either. Doofenshmirtz sat there still. Maybe I'm not really evil? He questioned.

No, it can't be. I'm an evil scientist. I am evil. He told himself repeatedly in his mind. But hey, you have got to admit that Perry the Platypus is quite a great musician. I didn't know that he could write a song before.

The doctor glanced at the clock. "Ooh, it's time for my favourite show! Oh yeah!" He shouted in excitement as he rushed to the couch and turned on the TV, forgetting about his intense emotions just a few moments ago.

The friends swam in the water tank for a little more time. They had much fun with the platypus, and Baljeet eventually decided that he would participate in his friend's activity next Tuesday. Maybe it's dangerous, but he's pretty sure that he'll be safe around his friends even in the vast ocean, and that he would have a great, unforgettable experience. Besides, he had participated in all of Phineas and Ferb's activities before, so how could he miss out on this one?

Therefore, he agreed to Phineas's invitation. Phineas seemed to be really happy about it."That's awesome, Baljeet," said the redhead,"but I really think you should try breath-hold diving. To be honest, it's going to be my first time swimming out there in the middle of the ocean, too. But I'm going with no diving equipment. And it's going to be a lot more fun that way, I can assure you that."

"Um, I am not sure. I need some time to think it through," said Baljeet.

Phineas said, "it's fine, don't rush yourself. I guess it's good to consider this thoroughly. In the meantime, I'll be swimming underneath with Ferb. Do you want to come with me or stay here and think?"

"I'll come with you while I think about the issue. Actually, it does not matter much for me, because I often find myself holding my breath right after I had finished with a challenging problem or a tough choice. I tend to unconsciously hold my own breath when I was thinking very hard," said Baljeet.

"All right then." They dove into the water once again, following the Brit. They soon saw Perry approaching from behind and Isabella not far ahead of them.

Baljeet thought about it for quite a while before answering his friend. He was still a bit concerned about the safety, but at the same time, he was told it was supposed to be fun. In addition, he had heard some time ago that Buford was going freediving then as well, so there's a good chance that he could wind up being the only being who's in a wetsuit.

While underwater, the redhead grabbed Baljeet's hand by accident, which caused Baljeet to flip over. Baljeet let out a muffled cry of surprise and righted himself. He saw the platypus passing from above his chest when he was doing so.

Despite this, Baljeet did not surface right away; instead, he stayed underwater for a few more seconds until he got out of breath. What he didn't realize is that he had actually spent more time underwater than before. It was probably because he was drowned in his thoughts. He went under the surface as he kept thinking.

Underwater, Phineas and Ferb did some tricks, and then they fist-bumped each other. Perry, on the other hand, kept swimming back and forth through Baljeet's feet and past his shoulder, rubbing his fur against the boy's skin, then the platypus began to swim in circles around him.

The semi-aquatic mammal did that for a short while before swimming off, and Baljeet, for some reason, followed him. He didn't know why he was doing that, but he felt like there was something in his bones telling him to do so.

He doesn't usually just listen to his guts like that, but he was too focused on considering whether he should go without breathing supply on the activity next Tuesday to care. Strangely enough, Perry was, in fact, swimming slowly, so much so that Baljeet could keep up.

Perry led Baljeet to various spots in the pool, making sudden turns and dips from time to time before they went over to where Phineas was. He saw Isabella there as well.

Phineas, Baljeet, and Isabella surfaced. Halfway to the surface, Baljeet saw Perry swimming past him and got inspired. He made his final decision. When he emerged from the surface with his friends, Baljeet had already pondered backwards and forwards on the issue, and now he could finally give an answer, "all right, Phineas, I guess I will go without breath supply." Baljeet said, sitting on an inner tube.

"Sweet. Meet you in our backyard next Tuesday then," Phineas held onto the exact inner tube Baljeet was sitting on and said.

Perry and Ferb came over. "Hi, Ferb. Hello, Perry." Phineas said, scooping his pet up from the water, who shook violently, splashing the kids gathering around him.

"Perry is indeed a boy's best friend. Right, Ferb?" said Phineas while patting the platypus.

Ferb answered, giving a thumbs-up with a grin clearly visible on his face. "But he's also something more. Perry is, and always will be, our nonverbal buddy."

Everyone dove to the bottom and made an upside-down pyramid with their bodies underwater. They kept changing positions, while Perry swam through the gaps between the children. One time they even balanced with Baljeet at the bottom and Buford at the top since the buoyancy of the water helped a lot.

Eventually, they couldn't hold their breaths anymore and broke the surface. The gang had one last session with Perry, and then they all climb out of the water tank, which disappeared with a flash of light as soon as the last person, Phineas, got out of it. Once out of the water, the platypus shook his fur were basking themselves under the mild afternoon sun when Linda came out. "I've had a long nap and feel much better now. Now, who wants pies?"

"Me!" The kids exclaimed, wiping themselves off with the towels that they were handed. All of them walked into the house, having changed into their everyday clothes.