The PAW Patrol theme plays normally, until the end...

Candace: "Mom, Phineas and Ferb are making another crossover, this time with dogs."

Everest and Tracker: "Yeah, they are."

Doofenshmirtz Evil Incorporated

It all started at D.E.I., where Doof unveils his latest -inator to his frenemy Agent P.

Doofenshmirtz: "Ah, Perry the Platypus. What an unexpected surprise. And by unexpected, I mean completely expected! (Doofenshmirtz presses a button, which traps Agent P.) BEHOLD! The Teleporter-inator 2.0! It will bring people from other worlds into the Tri-State Area and take my brother Roger plus Danville City Hall back to our homeland of Gimmelshtump." (Perry manages to get out of his trap, aims for Doof's nose and is about to break the machine when Doof hits the Self-Destruct Button).

Doofenshmirtz: "Oh, come on! You got free and nearly smashed my -inator? And what's next? That's not supposed to happen. Curse you, Perry the Platypus!"

(Once Perry leaves and Doof kicks his -inator, a ray from the machine shoots up into the sky. From outer space, it heads toward Adventure Bay, in the world of PAW Patrol, where Everest is approached by Marshall and their pals).

Marshall: "Hey Everest."

Everest: "Hi Marshall, what's up?"

Marshall: "Remember the time you first met us?"

Everest: "Or the last time we walked to the Lookout together?"

Marshall: "Yeah."

(The -inator beam hits Marshall and Everest, taking them to Danville's Central Park)

Marshall: "Where are we."

Everest: "I don't know, but we must look around."

Marshall: "We need to ask someone for help."

Everest: "How about a walking tour here?"

(Cut back to DEI)

Vanessa: Another failed -inator?

Doofenshmirtz: "Yep. That -inator got one shot when I destroyed it. I wonder if it hit Roger."

Ryder (on television): "Thanks for hurrying pups. A bewildering beam out of nowhere took Marshall and Everest away, but we don't know where it came from or sent them."

Gordon Gustafinemu (on television): "Dateline, Adventure Bay. Following the power drain of four superheroes, another mysterious ray has taken a Dalmatian and Siberian Husky to Danville. These two have claimed to be Marshall and Everest this so-called PAW Patrol."

Doofenshmirtz: "That means I likely brought a couple of dogs to the Tri-State Area!"

(Cut to Flynn-Fletcher Antiques)

Lawrence: "Oh, hello. Who are you two?"

Everest: "I'm Everest."

Marshall: "My name is Marshall."

Lawrence: "Pleased to meet you, I'm Lawrence. How may I help you?"

Everest: "We're looking for a place to settle after a ray took us here from Adventure Bay."

Lawrence: "What is this Adventure Bay you're talking about?"

Marshall: "Adventure Bay is our hometown. We're part of a team of rescue dogs known as the PAW Patrol."

Everest: "I joined the group after saving Jake from falling off a cliff on his mountain."

Lawrence: "Never heard of this PAW Patrol. Anyway, have you guys seen Perry by any chance? I brought him with me this morning."

Everest: "Perry? you mean Katy Perry?"

Marshall: "We have a friend named Katie and she runs a pet parlor."

Lawrence: "My family's pet platypus."

Marshall: "Is that your pet? Weird."

Lawrence: "He always sneaks away. And if you want a place to stay, you're more than welcome to our house."

Everest: "Really?"

Lawrence: "Yeah, I have two boys named Phineas and Ferb. They've built a lot of crazy things. You should meet them."

Marshall: "Phineas and what?"

Lawrence: "Phineas and Ferb."

Everest: "What's a 'Ferb'? Is that a fern?"

Lawrence: "He's my biological son, Phineas and Candace come from my wife, Linda."

Marshall: "Neat. Where is your house at?"

Lawrence: "2308 Maple Drive."

Everest: "Sweet. We're headed there right now."

Lawrence: "See you later."

(Cut to the Flynn-Fletcher house)

Phineas: "Ferb. What should we do today?"

Ferb: "I dunno."

Phineas: "Well, tomorrow is the last day of summer. It's also been a while since we built portals to Mars and Feebla-Oot. How about another one?"

Candace: "PHINEAS AND FERB! WHAT ARE YOU UP TO?"

Phineas: "We're thinking about building a grand portal."

Jeremy: "A portal to nowhere?"

Stacy: "Sounds fun!"

The side gate door opens to reveal four kids, and two dogs.

Isabella: "Hi, Phineas. What'cha doin?"

Buford: "Hey, Dinner Bell. Who are these two?"

Marshall: "I'm Marshall and this is my friend Everest."

Phineas: "I'm Phineas, this is my brother Ferb and she's our sister Candace."

Jeremy: "My name's Jeremy, and this here is Stacy."

Isabella: "Isabella Garcia-Shapiro leader of Fireside Girl Troop 46321 at your service."

Buford: "I'M BUFORD VAN STOMM! REMEMBER IT!"

Baljeet: "Nice to meet you, my name is Baljeet."

Irving: "And I'm Irving. Phineas and Ferb's biggest fan."

Everest: "Fireside Girls?"

Phineas: "They're a group of girls that Isabella hangs out with and help out with our projects. Also, why did you guys decide to come to us?"

Marshall: "We heard from your dad that you've made a lot of cool stuff, like..."

Phineas: "A rollercoaster, backyard beach, spa, funhouse, tallest building to the moon, jet airplane, giant maze, lemonade stand, and countless others."

Marshall: "Wow, I don't expect young kids to build all of these things."

Ferb: "Just to the tip of the iceberg."

Everest: "You have a dorito shaped triangle head."

Phineas: "That's just the way I was born. I accept it, and so do my family and friends."

Everest: "Um, which way to Jake's Mountain?"

Phineas: "Don't worry. Ferb and I are building a portal."

Baljeet: "Can I help?"

Ferb: "You sure can."

*Ferb completes the portal*

Phineas: "There, well done."

(The portal opens to reveal Jake coming out.)

Jake: "Hi, Everest, Marshall and... whoever the rest of you are?"

Everest: "Everyone, this is my owner Jake."

Candace: "Nice to meet you, Jake. I'm Candace, these are my brothers Phineas and Ferb. Their friends Isabella, Buford, Baljeet, and Irving. And my friends Stacy and Jeremy."

Jake: "It's also a pleasure meeting you all."

Jeremy: "Oh, there you are Perry."

Phineas: "We also have a pet platypus."

Jake: "No way!"

Phineas: "He doesn't do much."