Meanwhile, Kim had arrived at Drakken's mountain top lair and was sneaking around towards the entrance. Making her way inside, she hid by the outer wall of the main chamber and peered inside.

"Very soon Doofenshmirtz, the vast population of those online will pledge their allegiance to us" Drakken said "and such a computer savvy army will help us conquer the world."

"Or at least help us figure out how to debug a hard drive" Doofenshmirtz replied "mine keeps crashing all the time."

"And I'm about to crash your little plan" Kim said, revealing herself.

"Kim Possible! How did you find us?"

"Probably because you use this lair most of the time" Kim said "it's predictable, just like you."

"Well see if you can predict this" Drakken said "henchmen, get her!"

Several of Drakken's henchmen then rushed into the room, but Kim was ready for them. She jumped in the air and came down on one of them with a kick, then dodged the blow of another and flipped him over her shoulder.

"Keep trying boys, you might just get lucky" Kim taunted, as one of the henchmen swung his polearm at her. Kim backflipped out of the way, right next to another henchmen, then moved when the other attacked her, causing him to shock his teammate.

"You really should watch where you point those, looks like somebody got hurt" she said, before delivering a kick to the other goons' jaw "not me of course."

The remaining three henchmen charged her from all sides. Kim ducked down and slipped under the legs of one, then knocked him down with a sweep. When the other two went to charge her, Kim did a handspring on the fallen henchmen's back and connected with a double kick to their jaws. Then she got to her feet and did a cheerleading pose.

"Well that was fun, but I'm ready for a challenge" she said "so bring on Shego and let's rumble."

"Actually, Shego's not here" Drakken explained "she doesn't get along very well with Doofenshmirtz, so she took one of her vacation days; one of the recent additions to her newest contract."

"That's why you shouldn't negotiate with people you're involved with" Kim said "you and Shego are still…right?"

"Yes, but it's a complicated relationship" Drakken replied "it's not all kissy-face, like you and the buffoon. But that doesn't matter, I have a more powerful and loyal sidekick to deal with you anyway. Kim Possible, face the fury of…Norm!"

"Norm? Is this a joke?" Kim asked.

"Oh no, but I'll be the one laughing" Drakken said "Norm, destroy Kim Possible!"

The robot, who had been hanging out in the corner doing nothing, began lumbering towards Kim.

"The enemy of the platypus is man."

"A robot with a tie" Kim said deadpan "and you actually expect this to beat me?"

"Quite clever, yes?" Drakken asked "you can thank Doofenshmirtz here, it's his invention."

"That makes so much sense" Kim said, before Norm slammed his fist in the ground. Kim avoided the blow, then jumped up and kicked Norm in the head, sending him to the ground.

"Yeah, real dangerous" she said mockingly "now then, time to unplug your little computer scheme."

"And I'll help!" came a familiar voice from the entranceway.

"Oh please no" Kim said, as she turned her eyes forward. Indeed, there was Candace, but it was what she was wearing that Kim noticed right off.

"Oh no you didn't!" she shouted.

"I know what you're thinking, but let me explain" Candace said "remember, you said you wouldn't take me on a mission because I couldn't protect myself? Well I found this in your closet, so now I can help you."

"How did you even get through my palm scanner?" Kim asked "you know, never mind, I don't want to know. And how'd you get here, anyway?"

"Hid in your trunk" Candace explained "and I don't mean to be rude, but you really need to drive slower, because I was bumping around in there…"

"Okay, after I take care of Drakken, we are so talking about this!" Kim said angrily "I thought you agreed not to copy me anymore."

"This isn't copying you, it's helping you."

"You could've fooled me" Kim said "and another thing, what makes you think you have the right to borrow my gadgets without asking?!"

"I'm sorry, I just wanted…look out!" Candace yelled.

Kim turned around just as Perry's tiny fist connected with her face. For a small platypus, he packed a big wallop, and Kim was slightly dazed from the hit.

"Okay, I wanted a rematch with you" Kim said, taking a fighting stance.

Perry moved his hand as if to say "bring it on."

Kim charged forward and let loose a chop, but Perry dodged it and grabbed her arm, flipping her to the floor.

"Okay, what is the deal here?" Kim asked "there is no way a platypus can flip a human!"

Before Kim could get up, Perry got behind her and grabbed her arm, twisting it behind her back.

"Ow! You're strong for a little guy" Kim commented.

"Don't worry Kim, I'll save you!" Candace said, rushing forward to save her idol. However, a revived Norm quickly grabbed her in his crushing grip.

"Hey, let me go you creep!" Candace said, as she struggled "I thought this suit thingy was supposed to make me stronger."

"This is why you shouldn't mess with something if you don't know how it works" Kim replied, still held on the floor by Perry. Then she noticed a pair of black boots in front of her and looked up.

"So Kim Possible, you thought you'd foil our little scheme, eh?" Drakken asked "well now you, and your little friend there, who I've never met, will have a front row seat as I finally take over the world!" he added, before laughing evilly. Soon both Doofenshmirtz and Norm joined him in villainous laughter.

Back in Middleton, the tweebs and their new friends were still testing the limits of the rockets bikes. They had discovered that they could break the sound barrier, but that doing so would break them.

"Maybe if we used stronger material" Tim suggested.

"Where we would get anything stronger?" Jim asked "the only way we could keep the bikes from falling apart is to make them out of something that can withstand the sound barrier, like a jet plane."

"Okay, I'll call the army and ask for some surplus metal" Jim said "you get to work on rebuilding this bike."

"Why me? Why don't you rebuild the bike and I'll call the army."

"Because it was my idea, that's why" Jim said.

"No it wasn't, it was mine!" Tim argued.

While the two brothers argued, Phineas & Ferb looked over the remaining bike.

"Well, it still went pretty fast for a normal bicycle" Phineas said "plus you don't have to pedal, and the wheels are big enough to fit a whole lot of baseball cards."

"I'd call that a rousing success" Ferb added.

"So, am I done here?" Ron asked the stepbrothers "'cause I blew off a mission with Kim to help you guys, and she is going to be majorly tweaked."

"Yeah, you're done" Phineas said "but I wish we had known about the mission thing. We never would've asked you to give it up for us."

"It's too late now" Ron said "Kim already left and there's no way I'll be able to catch up with her."

Phineas turned and looked at the other rocket bike "actually, there may be."

Realizing what the boy was saying, Ron strapped himself into the bike, only to discover the two geniuses hopping on with him. "Whoa, sorry dudes, but I can't bring you along, it could be dangerous."

"We witnessed when you and Kim battled these mad scientists the last time" Phineas explained "we're more of a threat then they are."

"Good point" Ron said "okay, hang on tight, 'cause this baby has quite a kick."

He pushed the ignition button and the bike zoomed off down the street, interrupting Jim & Tim's argument.

"Where do they think they're going?" Jim asked.

"I don't know" Tim replied "but we can use this time to repair the flaws in our first rocket bike."

Meanwhile, back in Drakken's lair, Kim & Candace were tied up and sitting near the Slave-Inator, watching Drakken & Doofenshmirtz worked on a computer.

"You know, I've been tied up so many times, you think I would've figured out how to escape by now" Kim said

"I'm sorry Kim, this is all my fault" Candace blurted out.

"No it's not."

"Yes it is" Candace replied.

"I know, I was just trying to make you feel better" Kim told her.

"I'm sorry I stole your suit thingy and that I dressed like you and everything" Candace said "it's just that well…I'm really jealous of you."

"Jealous?"

"Yeah, you get to travel the world and have all these fun adventures" Candace continued "and what do I do? Stay home and yell at Phineas & Ferb all day, then get constantly embarrassed and humiliated. And the only other country I've been to is England, and my trips there were not fun."

"Anyway" the girl continued "I just thought that maybe if I was more like you, things would change for me, you know? Maybe I'd be more popular, and maybe Jeremy would notice me, and maybe I'd get to have cool adventures. But I'm really sorry if I annoyed you."

"No big" Kim replied "but you shouldn't pretend to be someone else just to get people to notice you. Just be yourself."

"Yeah, that'll work" Candace said sarcastically "what skills do I have that people would like about me? Yelling really loud? Trying to bust my brothers? My own mom thinks I'm a psycho!"

"I happen to think you're an okay friend" Kim explained "and that's when you were just being you. I meant what I said about us being friends back at my house. And if I can think that, other people can too."

"As fascinating as your little teenage problems are" Drakken interrupted "I do have world domination to achieve here."

"Um, excuse me, Mr. evil scientist guy" Candace said "could you maybe let us go? I promise I won't tell anyone what you're doing."

"Sorry, but it doesn't work that way" Drakken explained "besides, in a few minutes, the only thing that will matter to you is serving me!"

"I have to hand it to you Drakken, you've actually come with a half-decent plan for once" Kim said "too bad it won't work."

"And why not? I've already hypnotized a number of computer users" Drakken explained "and once Doof and I are ready, we'll release over a million copies of our special viral video. Every person on Earth that's part of a social networking site will bow to our will, including you two."

"And that's going to happen, how?" Kim asked.

"I'm glad you asked" Doofenshmirtz said "since you already made the decision to come here, we're going to expose you to the Slave-Inator at close range."

"Thanks for the special treatment" Kim replied sarcastically.

"You're welcome, I guess" Doofenshmirtz said, thinking she was serious.

After the two doctors went back to their business, Candace craned her head towards Kim. "I don't want to be a slave!" she exclaimed.

"And you won't be" Kim said "we'll get out of this. Because the helpless damsel sitch is so not me."

Unknown to either girl, Ron and the brothers had arrived at Drakken's lair on the rocket bike and were outside.

"That was a fun ride" Phineas commented "I'm so glad we helped build these."

"Okay, you dudes stay out here" Ron cautioned "I don't want you getting hurt."

"Don't worry about us, we can take care of ourselves" Phineas said.

"All right, but I'm not sure Kim will be happy about this" Ron said "now let's..." suddenly, he didn't feel so good. "Um, hold that thought" he said, as he looked for a place to vomit.

"How come we don't have to vomit?" Phineas asked.

"Perhaps it only affects those with weak stomachs" Ferb suggested.

"Kim Possible, you think your Facebook page is all that, but it's not!" Drakken said, as he and Doofenshmirtz worked on the computer "and since you can't do anything about it, I'm changing your status to 'tied up.'"

"I'm not sure I like my enemies messing with my private information" Kim replied.

"Then don't put it on the computer" Drakken retorted.

"What's the big hold-up, anyway?" Kim asked "if you've got all these videos ready to go, why not launch them already?"

"Because, we're waiting until 8:00" Drakken explained "according to my research, that's when most people in the world are online."

"Uh-huh, and where'd you get this information?"

"I…none of your business!" Drakken shouted "anyway, in five minutes Doof and I will have a small army on our hands. Anyway, while I have you here, I was wondering if you could help me with something. Did we ever have a fight in Hawaii?"

"With a little Hawaiian girl and an alien?" Kim asked.

"So I wasn't dreaming" Drakken said "that's good to know, I guess. But enough pleasantries; soon the two of you will be transformed into my obedient slaves!"

"Guess again dude!" came a familiar voice. Everyone turned to see Ron standing in the doorway with Phineas & Ferb.

"It's the buffoon!" Drakken shouted "and those two nosy kids."

"Ron, why are Phineas & Ferb here?" Kim asked.

"Heh, it's kind of a long story KP" Ron replied sheepishly.

"Hey Candace, we didn't know you were here" Phineas commented.

"Never mind that, get over here and untie me!"

"Oh no you don't" Doofenshmirtz said "Norm, get them!"

The robot got up from his position and lumbered towards the newcomers.

"A robot with a tie? Come on man" Ron commented "OK, I'll handle the robot, you two, do something" he instructed Phineas & Ferb.

"How about we free Kim and Candace?" Phineas suggested.

"Good idea. No wonder you two are geniuses" Ron replied.

Phineas & Ferb quickly ran over to where the two girls were tied up, and Phineas began inspecting the knot.

"Hmm, seems like a common half-hitch to me" he said "so if I pull it like this…" instantly the ropes fell away "ahh, perfect. Um, Candace, what are you wearing?"

"None of your business!"

"It's my high-tech super suit" Kim explained "and we're going to have a long talk about that later. First I need to stop Drakken's plan."

"You're not stopping anything Kim Possible" Drakken said, and noticed that Drakken had moved the large Slave-Inator so it was facing them instead of the computer "one zap of this and you will all be my slaves."

"A mind control machine? That's hardly original" Phineas commented.

"Thanks for the comments from the peanut gallery" Drakken replied "now say, 'hail Drakken.'"

"And Doofenshmirtz, don't forget Doofenshmirtz."

"Yes of course, and Doofenshmirtz as well" Drakken said.

That brief distraction was all the opening Kim needed to take out Drakken with a well-placed kick.

The evil villain slid across the floor, but quickly righted himself.

"You think you can win that easily Possible?" Drakken asked, dusting himself off "you forget, this is my lair, and I have the advantage!"

Producing a remote from his pocket, he pressed the button; instantly, an array of lasers popped up from the walls and began firing.

"Terrific" Kim said, as she began flipping to avoid the lasers. She then noticed that another group of Drakken's henchmen were also coming into the room.

"Double terrific."

Meanwhile, Ron & Rufus were still dealing with Norm.

"What do you think little buddy, should we trash this guy?"

"Oh yeah" Rufus replied.

The molerat jumped out of Ron's hands and quickly scampered over to Norm. Finding a hole in the robot man's fuselage, he crawled in and began to do his best sabotaging. After a few minutes, he began to sputter and malfunction.

"The enemy of the platypus, is man" he said, before he shut down.

"Yeah, well the enemy of you is the naked mole rat" Ron commented.

"Ahh, my somewhat sophisticated robot man!" Doofenshmirtz shouted, before turning to Ron & Rufus "you two will pay for this. Perry the platypus, get them!"

Perry suddenly appeared from nowhere, flipping over Doofenshmirtz and landing in a martial arts stance.

Rufus ran forward and engaged the platypus agent in several martial arts maneuvers. But his skills were hardly a match for those of a professional.

Meanwhile Phineas & Ferb, who had gone unnoticed by everyone, were examining the Slave-Inator.

"This is a pretty complex mind control machine" Phineas commented "but I don't think it should take us too long to disable."

Ferb unscrewed one of the panels, and they were about to begin work, when they became aware of someone behind them. Both boys turned to see a pair of Drakken's henchmen, polearms at the ready.

"Hey, how you doing" Phineas said.

Suddenly, Candace jumped into the fray, putting herself between her brothers and the henchmen.

"Sorry guys, but nobody messes with my brothers, except me!" Candace said "hi-ya!"

With the suit's power helping her, Candace made quick work of the two goons.

"Thanks for helping us Candace" Phineas said.

"Well, you guys are my family" Candace said "but this doesn't mean I'm going to stop trying to bust you."

"We figured."

Meanwhile, Kim was having a heck of a time dodging the lasers and the weapons of Drakken's goons.

"It's only a matter of time Possible" Drakken said "soon you'll get tired and then I'll have you."

"Put a sock in it" Kim said, but she knew he was right. As she flipped to avoid another laser, she was tripped by the polearm of one of the henchmen. The goon quickly prepared to bring his weapon down on the teen hero, but felt himself being lifted off the ground.

"Hands off the friend, creep!" Candace said, before tossing the goon aside. She offered her hand to Kim "you okay?"

"Yeah, thanks for the assist."

"No big. Oh, I'm sorry, I know you don't want me saying that."

"In this case, I'll make an exception" Kim replied.

"So I guess it wasn't so bad that I borrowed your suit, huh?" Candace asked, a wide grin on her face.

"No, we're still going to have a talk about this later" Kim said "listen, I need to disable Drakken's computer. You think you can handle the henchmen?"

"For you, no prob" Candace said.

As Kim ran off, Candace faced the remaining goons.

"Okay guys, you want her, you have to go through me" she said angrily, as she narrowed her eyes "so the only question I have is, who's first?!"

Elsewhere, Phineas & Ferb had just finished their tinkering with the Slave-Inator.

"Just pull this wire here, like so" Phineas said "and, that should do it."

And he was right, the machine shut down. And luckily it did, as Perry had gotten the upper hand on Rufus and was looming over the molerat, ready to deal the final blow. As Perry brought his tiny hand down, he suddenly stopped in mid-chop, as his mind returned to normal. Neither Ron or Rufus had any idea what had just happened.

"What are you doing?" Doofenshmirtz asked "get those guys, I didn't say you could take a break yet."

Perry looked towards Ron & Rufus, then back at Doofenshmirtz. Then he made his choice, jumping up and knocking down his arch-nemesis.

"Why are you fighting me, I thought…" Doofenshmirtz said, before realizing the Slave-Inator was now broken "whoo boy. Heh heh, come on Perry the platypus, remember all the good times when you weren't hypnotized? You aren't going to beat me up over this, are you?"

Perry replied by rearing back his tiny fist.

"Oh man, this is going to hurt" Doofenshmirtz said "wait, why would it though? I mean, platypuses aren't all that strong. Platypuses...platypi...platypeople...whatever ."

WHAM!

"Think you can disable it Wade?" Kim asked through the Kimmunicator, as she was at Drakken's console.

"No problem" Wade replied "I'll have it shut down in no time."

"Excuse me" Phineas said, tugging on Kim's pants leg "but Ferb and I would like to help. Let's have a look at this thing."

Phineas began typing on the computer "uh huh, yeah, okay" he said, as he continued typing "and…there you go, that should disable the system and the hypno-videos."

"Wow, thanks" Kim said "but you know, Wade could've handled it."

"I know, but we're your guests" Phineas replied "you took us into your home, the least we could do was help you save the world."

"Then I guess things are all wrapped up" Kim said.

"Not quite Kim Possible" Drakken said. Kim and the boys turned to see him nearby with a laser "you think you've beaten me, but all you've done is delay the inevitable. And once I rid myself of you and those two little brats, I'll…hey, what's going on?"

Drakken immediately became aware that he was being lifted off the ground. He was then turned around to face an angry Candace.

"I asked you nicely to let me go and you refused" she said, rearing back a fist "it's payback time, blue boy!"

"Aaah, please, can't we at least discuss this?" Drakken asked "not in the face!"

A few minutes later, the beaten Drakken & Doofenshmirtz were tied up by Perry. Kim approached the little platypus as he secured the villains.

"Listen, I know we had some problems these last few days, but I'm happy to see you're still on the right side."

Perry nodded in approval, checked his knots, then headed out of the lair.

"Was it me, or did that guy remind you of Perry?" Phineas asked Ferb.

"The resemblance is uncanny" Ferb added.

Kim watched the platypus agent scamper off, then turned to the captured mad scientists. "Let this be a lesson to you Doofenshmirtz" she said "if you want to pal around with Drakken, you'll have to deal with me."

"Kim Possible, you think you're all that, but you're not!" Doofenshmirtz shouted "hey, that was pretty fun to say."

"Hey, that's my line!"

"Oh come on, we're buddies right?" Doofenshmirtz asked "and buddies let each other borrow stuff. I mean look at Kim and that other girl, she let her borrow her neat suit thingy."

"Um, technically, I didn't" Kim added.

"Whatever" Doofenshmirtz said "anyway, as buddies, we should be allowed to share things, like catchphrases. Go on, give it a try."

"Well, um, curse you Perry the platypus!" Drakken yelled "wow, that is fun."

"I know" Doofenshmirtz replied.

"Is Perry somewhere around here?" Phineas asked, craning his head left & right to look for him

Next, everyone says their goodbyes. Also, Perry comes back to Isabella.