Perry woke in the middle of the night.

He couldn't fall back asleep. He was tired, but he couldn't sleep.

I'm sitting here, and the boys... all the people of Danville... need my help. Why am I not fighting?

That thought had been bothering him for two days now.

He knew the pups needed him, but he felt awful for abandoning everyone else. Why didn't he go back and free them?

Because he had to stay here and protect the pups.

Why couldn't Prince just stay with them?

He debated waking her up and asking her, but he knew she was hard to deal with when she was tired. She'd probably insist on going with him and leaving the pups alone in the house, or she'd get mad at him and tell him to forget it.

Perry just had a weird feeling that something big was about to go down in Danville, and he had to get there.

Fast.

He jumped out of bed and crept to the front door.

A pink glow illuminated the door.

Perry turned around.

Sneakers was floating merrily on the balcony above the stairs.

"Go back to bed, Sneaks." Perry whispered. "I'll be back."

Sneakers turned around and floated back into her bedroom.

...

In no time at all, Perry was blasting down the road in a car. He had no idea what kind of car it was. He didn't know that sort of thing.

A few months ago, Phineas and Ferb had played a car video game. Perry was surprised to learn that cars had names. They were usually a big last name with a random number. Perry just called all the cars in the game 'Car'."

He was well aware he was above the speed limit, and he felt bad about that. But he had to get to Danville.

He narrowly avoided hitting a road sign. It was hard to see things at his speed.

Suddenly he heard sirens.

"Dang." He muttered. "Can't a guy just streak down the road unnoticed?"

He smashed into a telephone pole. A few of the lights in the city went out.

Perry quickly backed up and crashed into one of the police cars.

"Whoops." Perry said. He zoomed away, the police in hot pursuit.

"STOP YOUR VEICHLE." One of the officers was saying through a megaphone. "YOU, IN THE RED MARSH 23."

"Oh, is that what kind of car this is?" Perry looked down at the hood of his car. "Could have been driving a breadstick, for all I know."

Despite his current situation, he was happier than he had been in the past few days. He was going to save his family. He was no longer sitting around doing nothing.

He attempted to whirl around a corner and promptly smashed into a wall. The windshield shattered, and the car stopped.

"Dang, I was on a roll." He said.

A policeman yanked him out of the car by the scruff of the neck. "ID."

Perry handed it to him.

"Perry the platypus, you are under arrest for reckless driving, destruction of this lovely wall…"

"Hey, your wall broke my car." Perry said.

"…and disturbing the peace. Hands behind your back."

Perry obeyed. The officer locked his wrists into handcuffs. "Stay put for one moment."

He began talking to another officer.

Another police officer got out of his car and walked over to Perry.

Perry wasn't sure whether he liked the look of him or not. He felt like he wanted to be near this officer more than anything, but he also felt a little annoyed by him. He also felt like the officer should go back to his police station and not get in the way of Ferb…

Ferb? Where did that come from?

"Let's head to my car." The officer said firmly. His voice was familiar. It irked Perry even more. He didn't like that voice. It was the voice of someone Perry disliked and yet respected…

The officer pulled him into his police car, stuck him in the driver's seat, and sat down in the passenger's.

He closed and locked the car.

"Whoops." The officer said. "Looks like I accidentally placed you in the driver's seat."

He reached over and, with a single squeeze from his hand, broke the chains connecting Perry's handcuffs.

"Whoops. Looks like I accidentally freed you. Oh, and since you're in a police car, no one will care if you're speeding, so… looks like I accidentally gave you a way out."

The officer's face changed.

"Oh, quit saying the word accidentally." He spat in a completely different voice. "It's just weirding him out now."

"Guys, guys." The officer's face changed again. "This is freaking him out even more. Let's just all get out and… Arthur, you stay in."

"Why do I have to stay in?"

"Just STAY!"

There was a flash of blinding light, and suddenly the police car was full.

Full of ghosts.

Perry stared at them.

"Hello there." Daly said. "Just passing through. Would you mind showing us to the life forms?"

"We saw Danville." Terrence said. "We came to help you, Perry."

Perry's eyes rested on Terrence. He felt happiness explode within him.

"Terrence… you came! You're here! How are you here?"

"In spirit." Daly snickered.

"I missed you, Perry." Terrence said.

"You too… I can't believe you're here!"

"You two can frolic through memory lane some other day. Drive, buddy!" Daly said. "Danville isn't gonna save itself!"

"I still don't see why Daly couldn't have been the policeman." Arthur grumbled, folding his policeman arms. "But it is nice to have a bottom half for once."

...

"Keep going!" Phineas shouted. "Slam against the wall!"

All the humans smashed anything they could against the wall. It appeared to be cracking a little.

"We're almost there! Come on! We can't give up!" Phineas yelled. "Maybe use something different than a Ducky Momo plushie, Doof. You got this, Mrs. Weaver! Put more muscle into it, Diminutive! Bust it down like you're busting down the door our invention is behind, Candace!"

Candace turned around. "Wait. You're actually aware that I try to bust you?"

"Bust us? All I know is that once you broke down a door our invention was behind. Really amazing door-busting skills. Come on, guys! On the count of three! One! Two!"

"THREE!" Everyone shouted.

The wall gave way. They all ran through, brandishing their random items.

...

"I hear people!" Pinky said, pressing his ear against the wall. "I think the humans got out!"

"Tell them to get US out!" Peter said.

"I don't speak English, I speak dog!"

"All right, agents! Make a lot of noise and maybe they'll hear us!" Ernest commanded.

The animals began to shout random words.

"Pumpernickel!" Pinky yapped.

"Tea leaf!" Clara clucked.

"BUTT!" Yelled Baby Ned.

...

"The animals!" Phineas skidded to a stop. "All the animals in Danville! They're in that wall over there!"

"We have to help them!" Monogram ran over to the wall. "Agent E? Agent L? Agent P? Are you all in there?"

"Perry!" Phineas called.

"Mr. Fluffypants!" Doofenshmirtz gasped.

"Bust down the wall!" Phineas said.

"Hello?" Candace said. "We can get away now!"

"Perry's in there!" Phineas said. "Come on! Let's bust 'em out!"

"I guess I might as well. That's the only busting I'm gonna be able to do today, seeing as mom and dad don't seem to care about you guys leading a huge riot against the aliens." Candace grumbled.

"DOWN WITH ALIENS!" Lawrence yelled.

The humans slowly broke down the wall. The first animal to hop out was Peter.

"Aww, an adorable panda bear!" Said Isabella.

"Peter!" Doofenshmirtz said. "Peter the panda! You're okay!"

Pinky hopped out next and quickly removed his fedora.

"Pinkykins!" Isabella cried. She picked him up and hugged him.

"We need to make the hole bigger." Phineas said. "There's an elephant stuck in there. Where's Perry? Perry!"

"Here he is." Candace said, picking up a random platypus.

"No, that's not him. PERRY!"

"I vaguely remember seeing him leave our performance before the aliens attacked." Ferb said. "Maybe he was going to find them."

"He has to be in here." Phineas said.

All of the animals were out.

"COME ON, GUYS!" Doofenshmirtz shouted. "WE MUST GET THE ALIENS SO I CAN TAKE OVER- I mean, we must stop them from taking over the TRI-STATE AREA!"

A kangaroo hopped weakly out of the hole after the humans.

"There's only one animal left, and he's hurt." Phineas pulled a weary fox down from where he appeared to be levitating.

"That's a fennec fox." Ferb said. "They live in the desert. Their large ears keep them cool."

"He doesn't look too good." Phineas said. "I wonder if it has something to do with that flower-"

"DON'T TOUCH THAT." Ferb said sharply.

"Why?" Phineas asked.

"I've seen those in my 'Extremely Weird and Unknown to Man' plant book. They drain the energy of whatever it's on and transfer it over to another organism. The flower reproduces when it is touched by another creature. It is from the planet…"

"BOYS!"

Phineas looked down from the hallway window. Perry was standing miles below on the concrete.

"We're above Danville City Hall." Phineas said. "Who knew?"

"There's Perry." Ferb said. "And he has lots of white transparent people and animals with him. And a policeman."

"COME DOWN!" Perry called.

"I DON'T KNOW HOW!" Phineas shouted back. "THE HUMANS ALL WENT THE OTHER WAY!"

"WRONG WAAAYYY!" Shouted the humans, dashing down the hall again.

"NEVER MIND, I GUESS IT'S THIS WAY." Phineas said.

...

Perry grabbed the boys into a hug the instant they got down into the street.

"I'm so glad you're okay. I was so worried…"

"We're fine, Perry. They didn't hurt us or anything. But we found this little guy… do you know what's wrong with him?"

Ferb held out Lowe.

"Oh no." Perry said. "That's Lowe. I guess… keep holding on to him, Ferb."

A dark cloud was shaping in the sky. Perry looked around.

Every animal and human appeared to have gathered around City Hall, glaring up at the sky. Even Royal Guard had come. The ghosts of Gluum stood in the middle of everything.

"Something big's about to go down." Perry whispered.