In the Loud House, chaos was at a comfortable 7 out of 10. Lincoln, seeking a moment of peace to plan his next "Ace Savvy" comic book storyline, had barricaded himself in his bedroom closet. The only problem was the low, persistent hum and occasional purple spark emanating from under Lisa's door across the hall

Suddenly, the humming intensified into a high-pitched whine. Lisa's door burst open, and his bespectacled, lab-coat-wearing sister backed out, frantically adjusting dials on a device that looked like a turbo-charged soup can with a satellite dish attached

Lisa: "Fascinating! The quantum flux capacitor is achieving resonance, but the tachyon particle stream is destabilizing the containment field!"

Lincoln: "Lisa, what is that thing?" called out, peeking from his closet

Lisa: "Ah, Lincoln! Behold the 'Trans-Dimensional Portal-O-Matic!' It creates a temporary bridge between our reality and a theoretically adjacent dimension. I'm attempting to retrieve a sample of a unique form of ambient energy."*

As she said this, the satellite dish on the device began to glow, and a shimmering, wobbly vortex, like a soap bubble the size of a doorway, opened in the hallway. From within, they heard a bizarre cacophony: a honking noise, someone yelling "GUMBALL!", and the sound of a kazoo being played poorly

Lisa: "Fascinating! The dimensional barrier is more porous than I calculated!"

Just then, Lynn Sr. called from the kitchen. "Lisa! Leni! Come help me taste-test the meatloaf cupcakes!"

Lisa: "Coming, Father!" Distracted, she placed the humming, active Portal-O-Matic on the floor "Do not touch the event horizon, Lincoln. The molecular repercussions would be... messy."

She scurried downstairs. Lincoln stared at the shimmering portal. He saw a flash of blue—a round, cartoonish cat in sneakers zipped past the opening, followed by a giant, walking peanut yelling "DARRRRWIIIN!" before being yanked back out of view

His Ace Savvy sense of adventure kicked in Lincoln: "Whoa... a real alternate universe." He crept closer, mesmerized. He had to get a better look. Leaning in, he reached a hand towards the shimmering surface

At that exact moment, downstairs, Leni, confused by the machine, tripped over the power cord. There was a loud POP! and a surge of purple energy. The portal flickered violently

"Uh oh," Lincoln managed to say, before the unstable vortex expanded, swallowed him whole, and then snapped shut with a sound like a rubber band, leaving an empty, quiet hallway. The Portal-O-Matic sat on the floor, smoking gently

Lincoln tumbled out of a similar, but now closing, portal in the middle of a sidewalk, landing with a soft thud. He shook his head and looked up. His jaw dropped

He was in a world where the laws of physics, art, and common sense had taken a long vacation. A car made of a sneaker honked its laces at him. A mailbox was chatting amiably with a stop sign. In the distance, he saw a T-Rex working a cash register at a convenience store.

Lincoln: "Whoa, This makes my house look normal."

???: "Hey, you're new! And you're all one art style! That's weird."

Lincoln turned back and sees an orange goldfish with arms and legs with green and white sneakers on them

Darwin: "I'm Darwin," offering a fin "Are you lost? You look lost. You have that 'I-just-fell-through-a-dimensional-portal' look about you."

Lincoln: "Y-yeah. I'm Lincoln. Lincoln Loud. My sister's invention... it sort of... spat me out here."

Darwin: "Right, dimensional travel. Happens more often than you'd think, Come on, we should find Gumball. He'll know what to do. Or, more likely, he'll make it worse, but it'll be entertaining!"

Darwin led a bewildered Lincoln to the Watterson house, where Gumball, the blue cat, was attempting to teach his little sister Anais how to "properly" play video games by mashing the controller with his face.