"Hello I'm your Uncle Grandpa," said Uncle Grandpa.
"What the heck does that even mean?!" asked Numbuh 1.
"Allow me to explain," said Belly Bag. "No. He's everyone in the world's uncle and grandpa, and when he comes to visit, it's sure to be a time you'll never forget!"
"Didn't you say those exact same words when we helped Benny, Belly Bag?" asked Uncle Grandpa. "You know since I'm pretty sure you already said those words."
"I guess you're right Uncle Grandpa," said Belly Bag.
"Did that belly bag just talk?" said Numbuh 1.
"I didn't know I had a Uncle Grandpa," said Numbuh 3.
"Maybe he'll give us presents," said Numbuh 4.
"Numbuh 5 has heard of Uncle Grandpa," said Numbuh 5. "He travels the world to help kids in need in his RV."
"Since he helps kids maybe he can let us borrow his RV," said Numbuh 2. "Plus, I heard that the RV sounds neat."
"I'm here to help you guys stop those villains," said Uncle Grandpa.
"I appreciate the offer but the we're the Sector V of the Kids Next Door and can handle things ourselves," said Numbuh 1.
"Who are the Kids Next Door, Belly Bag?" asked Uncle Grandpa.
"Let's ask Mr. Gus," said Belly Bag.
Mr. Gus walked out of the RV and said, "The Kids Next Door are a global organization of kids dedicated to fighting adult tyranny."
Pizza Steve walked out of the RV and said, "Pizza Steve was part of the Kids Next Door and was darn good at it."
Giant Realistic Flying Tiger flew out of the RV and roared.
"The dinosaur man and talking pizza are one thing but that tiger is too weird," said Numbuh 1.
"Guess that means things have gotten pretty hairy!" said Numbuh 2.
There was awkward silence.
"You need some work on your jokes," said Belly Bag.
"Can I pet the kitty Uncle Grandpa?" asked Numbuh 3.
"Sure," said Uncle Grandpa. "You can pet Giant Realistic Flying Tiger."
Numbuh 3 ran up to Giant Realistic Flying Tiger and petted her. Giant Realistic Flying Tiger purred.
"Wait you're a former KND operative Pizza Steve?" asked Numbuh 4.
"Pizza Steve once fought off a hundred villains all by himself," said Pizza Steve.
"That's so cool!" said Numbuh 4. "I'm pretty tough myself as well."
"If you were a member of the Kids Next Door then how come you have your memories when decommissioned?" Numbuh 5 asked Pizza Steve.
"I'm just that awesome," said Pizza Steve.
"That's even cooler!" said Numbuh 4.
"Just ignore him," Mr. Gus said to Numbuh 5. "You get used to Pizza Steve after a while."
"So can me and my friends help Numbuh 1?" asked Uncle Grandpa. "I can do anything."
"If you can do anything then close that window over there while standing still," said Numbuh 1.
"Got it."
Uncle Grandpa's arms separated from his body and floated over to the window. The arms then closed the window and reattached themselves to Uncle Grandpa.
"Considering the circumstances," said Numbuh 1. "Alright team let's get into that RV."
"Hooray!" said Uncle Grandpa.