The Flynn-Fletcher car was pulling up to the shack, but the parents inside could not yet see what was going on around the shack.

Inside the shack, everyone was also holding on for dear life, as Bill grew and grew, in size and power.

Oh yeah baby, it's finally happening! I WILL RULE THIS DIMENSION! ENTER THE ODDPOCALYPSE! WHO CAN STOP ME NOW!?

Bill laughed a terrible, maniacal, roaring laugh, and then stopped abruptly, because someone else was laughing too. It was Doofenshmirtz.

What's so funny, meat bag? inquired Bill impatiently.

"What," chuckled Doof, "you really don't hear it? No? I'm really gonna have to explain this?"

What!? demanded Cipher.

"Anyone?' asked the evil scientist.

Everyone just stared blankly at Doof.

"Really?" he said again.

"We're not affiliated with him." said Ford.

"Perry the Platypus, surely you of all people, or platypuses, or platypi or— whatever, it doesn't matter, you know what I'm getting at, right?"

Perry stared at him blankly.

"What really? Wow, ok, I know something you don't. I am the smart one! Wow! I feel so vindicated, this is amazing! Everybody mark their calendars, this is the day that Heinz Doofenshmirtz was proven to be a genuine genius and—"

WHAT!? shouted Bill.

"Well, it's just, you said that you're invincible, and you've accomplished your goals, and no one can stop you now, blah blah blah…"

Yes…

"So, Mr. Smarty Pants, that's when a villain always gets stopped! That's when Perry the Platypus escapes from his trap and foils my evil plan by pushing the self destruct button on my inator!"

You put self destruct buttons on your inators? Well it's your own fault you get defeated, you're so stupid. Hey wait a minute, you didn't put one on this inator, did you?

"Well of course I did," replied Doofenshmirtz, "I believe I'm like contractually obligated at this point…"

YOU FOOL! Well, no matter! In three minutes, I will have gained physical form, and WEIRDMAGEDDON SHALL BEGIN! You all are trapped, and the only other things in this room are some tourist traps, a vending machine, a goat and a pig.

The goat and the pig put on little brown fedoras.

WHAT!?

"SECRET AGENTS GOAT AND PIG!?" everyone gasped, except Stan, who just mumbled, "I'm gonna... need to switch medications…"

OWCA Agents Gompers and Waddles swung into the gravity field too fast for Bill to react, pushing the self destruct button as their theme music played, "Doobie doobie doo ba doobie doobie doo ba— A GOAT AND A PIG!"

Perry nodded in approval.

The Other-Other-Other-Other-Dimensionator exploded, sending Bill home to his Dimension, postponing Weirdmageddon, and emitting a trans-dimensional energy wave which polarized the singularity outside the shack (in other words, SCIENCE!), reuniting Dipper, Phineas, Candace, Baljeet, Buford, Soos and Irving all once more (yes, it was powerful enough to return Irving from the bathroom).

Candace sighed in relief as her parents emerged from their car, smiling and waving at the gang.

"Hey kids, why don't we all go over to the picnic benches for some pie?"

As the kids ran over, Linda whispered to her husband, "Remember, all the weird stuff stays in the sack."

Lawrence nodded, placing the potato sack labeled "Weird Stuff" in the trunk next to a book entitled "Adult Puns".

As everyone turned towards the benches, Dipper grabbed Phineas.

"Hey Dipper, what—"

"No time to explain!" said Dipper, as he took Phineas by the hand, and jumped into the portal which was in the process of dissipating on the shack's lawn. They disappeared, back into the strange realm from whence Dipper had returned, the portal closing behind them before any of their friends could see where they had gone.