The lemon monster continues its rampage by smashing up the buildings filled with people and dousing the streets with lemon juice when a helicopter flies in.

"Remember, we have only one shot at this, screw this up, you're both fired!" Benson yelled.

"Benson, when did you rent a helicopter?" Rigby asked.

"This is none of your business!"

"Okay, just saying."

"To be fair, I thought it's suspicious as well, especially since I don't think you have enough money to afford to rent a helicopter." said Skips.

"Hey, do you know who couldn't afford a helicopter? My Mom!" Muscle Man butts in.

"Shut up Muscle Man, that joke isn't funny!" Mordecai yelled.

The helicopter positions itself right behind the rampaging monster as Rigby takes out a calculator and types in...

0รท0

The raccoon then press the button to calculate the result.

?

The calculator begins to glow and Rigby throws it at the lemon monster just before it explodes, creating a miniature black hole that would slowly sucks in the monster screaming in agony. It doesn't take long before the monster explodes into a gush of lemon juice as the helicopter begins to move away to a safe distance before getting sucked into the black hole. Afterward, the black hole begins to expand, pulling in several buildings at once and in time, the entire city begins to break apart, leading everyone in the helicopter to turn to look at Rigby.

"What?" said Rigby.

"Rigby, you said you have another calculator with you didn't you?" Mordecai yelled.

"I did, but I dropped it just before we took off!" Rigby yelled.

"Why didn't you tell us?"

"I was going to but there's a huge wind blowing in my face."

"Are you fucking kidding me?" Mordecai yelled.

"STOP YELLING AT ME!" Rigby screamed.

The gang heads off to look for the calculator that Rigby dropped and when they did, it turns out the calculator was crushed by a fallen oil tanker what had been picked up and tossed by the lemon monster just a moment before.

"What brand of calculator was it?" Skips yelled.

"I don't know!" was the answer.

"You don't know?"

"I wasn't paying attention, I didn't think it would be that important!" said the raccoon.

"Then was does it look like?" said Mordecai.

"Didn't you look at it? All I remember that it was red in front and has white sides, all see through!" Rigby yelled.

"Then me must head to Staples before it's too late." yelled Skips.

After dodging series of flying debris and bystanders that were getting sucked into the black hole, the gang then crashes through the front entrance of the office supply store.

A store clerk walks up to them and said, "Hey man, can't you read the sign?" while pointing toward the sign that reads, No animals allowed!

Skips punched him in the face and the gang scatters all over the store to find the right brand of calculator.

Mordecai and Rigby came across an aisle that have been stocked with calculators, only to discover that each brands has the same design.

"You have got to be kidding me..." said Mordecai.

"Let's try out each and everyone of these, maybe we'll get lucky." said Rigby.

The two the proceeds to try out one calculator of each and every brand, typing in 0x0=0 on every chance they get before passing it onto Muscle Man who then pass it on to Skips who passes it onto Benson who then stocks them up in his car one by one. However, by the time Mordecai and Rigby made their way to the end of the aisle for the final brand, the store suddenly breaks apart and the black hole begins to suck up everything around it. To make the matters worse, Benson and his vehicle were sucked into the black hole along with the calculators stocked inside.

Soon, Skips, Muscle Man, Hi-Five Ghost, Pops, and the unconscious clerk were sucked into the hole, leaving the two slackers holding onto the shelf. While clinging to the shelf, Mordecai grabs one of the calculators that were being sucked away and hands it to Rigby who was hiding in the shelf, saying, "RIGBY, I CAN'T HOLD ON ANY LONGER, THIS IS OUR LAST SHOT!"

Eventually, the shelves were pulled from the ground and Mordecai lost his grip.

"RIIIIIIIIGBY!" he screamed before getting sucked in.

"MORDECAI!" Rigby screamed.

The raccoon then types in, 0x0 when the shelf came apart.

Struggling to reach for the calculator, Rigby grabs one of the rubble and climbs over it before grabbing the item.

"HERE GOES NOTHING!"

He then presses the "=" button shortly before getting sucked into the black hole.

At that moment, everything stopped and it looked as if time have froze for a minute until the black hole burst, unleashing a massive amount of energy, resulting in a powerful shock wave that would shatter every windows in the entire state. Soon, everything the black hole have sucked in begins to rain back down into the city, even flooding it with lemon juice.

"AAAAAAAAAAAGH, MY EYES!"

Rigby, floating on one of the shelves begins to wake up to find himself surrounded by what was left of the city.

"Mordecai? Skips? Muscle Man? Where are you guys?"

"Please, say something! Even Benson!"

"SOMEBODY!" he screamed.

Then suddenly, the raccoon wakes up to find himself on a hospital bed surrounded by Mordecai, Skips, Muscle Man, Hi-Five Ghost, and Pops.

"Y-you guys...you're all alright...then that means...it's all a dream isn't it? Oh thank god, for a moment I thought that...the lemon monster...the black hole and the calculator...you know...it's all a dream!" he said.

"I know, we're glad you're alright, but what happened...it wasn't a dream." said Mordecai.

"What?"

"They're still trying to drain out the lemon juice that have flooded the city for the past few days."

Rigby looks out the window and saw the construction crew trying to drain out the lemon juice, only to have the machine to blow up, setting some of them on fire.

"Oh..."

Mordecai then sigh and said, "Also, Benson is having a meeting with Mr. Maellard, I think we're fired this time."

Rigby laughed and said, "C'mon, how many times have we heard that one before? Benson threatened to fire us countless times and he never followed through, what makes you think he'll do it this time?"

"Well, for one thing, Mr. Maellard is in charge of the park so Benson may not have much of a choice but to do what he said." said the blue jay.

"Well, this sucks." said the raccoon.

Meanwhile at Mr. Maellard's office...

"Benson, these two imbeciles have ruined the park for the last time and for years I have tolerated their nonsense." he yelled.

"However, things have gotten worse and you will have to fire them because if you don't, I'll personally see to that you won't be able to work here ever again!"

Just as Benson was about to say something, Mr. Maellard cuts him off.

"I want no excuses, I have been taking your inability to keep those two slackers on a leash way too lightly and this has got to stop!"

"It doesn't matter what your excuses are, whether it's because of a gang of unicorns, my son getting high on sugar, the rival park trashing the place due to a prank war, a drugged up ex-basketball star, Dennis Rodman trashing the place because some idiot held a party that night...or a heart attack..." Mr. Maellard continues as he begins to hold onto his desk.

"Mr. Maellard, who would use a heart attack as an excuse for not getting things done?" Benson asked.

Mr. Maellard begins to breathe shallowly and grumble, "I would..." as he drops to the floor.