While preparing for the funeral services for the late Mr. Maellard, his son, Pops was nowhere to be found so Benson decides to assign Mordecai and Rigby to go and look for him since the other employees were too busy handling their own arrangements.
"You have to remember, it's because of you guys that Mr. Maellard is gone so it is your responsibility to find his son, Pops and get him to attend the funeral to deliver the eulogy." said the gumball machine.
"Don't worry Benson, you can leave it to us!" said Rigby as he elbows Mordecai on the side.
"Yeah, we'll do it and we won't let you down!" said Mordecai.
Benson was about to say something but stopped before he does so and walks away mumbling, "Can't believe I'm actually trusting those two..."
Rigby pulls out a piece of paper and said, "Mordecai, if we can get Pops to come and attend the funeral soon, we can slip out of the service and look for the treasure in the map I found in Mr. Maellard's desk!"
"I don't know man, it's kind of messed up, almost like grave robbing." said Mordecai.
"Grave robbing? We're not digging up Mr. Maellard's grave and steal his stuff, we took it from his office and we'll take the treasure he kept hidden somewhere in the park, there's a difference. Besides, the guy wasn't even buried yet!" said the raccoon.
"Alright then, lets go and get this one over with, just hope nobody will notice that we're not attending Pop's dad's funeral, it may even hurt Pops!" said the blue jay.
Rigby then rolls his eyes and said, "Don't sweat it, if Pops doe notice, we'll just gave him some of the share we'll find and that should make up for everything."
"That is if we find the treasure, I mean for all we know, it could be a lame prank Mr. Maellard was trying to pull but never gotten around to do it." said Mordecai.
"C'mon man, why do you have to be a glass half empty sort of guy? You're being a buzz kill lately." said Rigby.
The two groundskeeper then heads off to find Pops and decides to check the first place they believe the humanoid lollipops from Lolliland would be if he's not in his room, at his beloved flying Mini Cooper. However, being that it would mean Pops have been driving aimlessly for some time, they will have to wait until the humanoid lollipop returns and when will that happen? No one knows...that is until..."Ow!"
"Hey, watch where you're going you bastard!" someone yelled.
Rigby got up and said, "What are you talking about, you're the one who got in the waaaait a minute...Pops?"
A grouchy looking man with a snarl on his face looks down at Rigby and said, "Pops? Oh yeah, that's right...I'm Pops, so what do you want you punk?"
"Wow, Pops really took his dad's death really hard." said Mordecai.
"Tell me about it." said Rigby.
"Wait, who's dead?" said "Pops."
"Your dad, he had a heart attack, didn't you remember?" Mordecai asked.
"He's dead, whoa...I mean...wow, that sucks." was the answer.
"Hey Pops, just wait right there, we'll get back to you in a minute." said Rigby.
The two then distance themselves away from angry looking Pops and begin to discuss what might have happened.
"Dude, he totally forgot that his old man is dead!" said Rigby.
"Yeah I know, he must have really took it really hard, trying to forget the whole thing and all, it must really sucks." said Mordecai.
Then the blue jay continues, "Not only that, we can't take him to the funeral like this, it'll become a huge disaster, I mean look at him, he even grew hair!"
Rigby went to take a closer look at "Pops" and notice the brown stubbly hair, not to mention he seems to have a mean facial expression as well, come to think of it...he looks like a wrestler. But then again, Pops was a wrestler as Rigby remembers the night when they snuck out to watch a wrestling match, only to get dragged into one due to a misunderstanding that the humanoid lollipop from Lolliland have created. It also didn't help that Pops was mistaken for a participating wrestler known as "Huge Head" who not only never show up for the match, but also inexplicably went missing and was never heard from for some time.
Then again, it was because of Pops that they were able to get out of the wrestling match against professional wrestlers alive and the humanoid lollipop from Lolliland won the golden championship belt. It was also the same night where Mordecai and Rigby were fired by Benson for sneaking out that night when they were supposed to be watching over Pops who injured his back that time (prior to sneaking out to attend the match himself), only for Pops to stick up for them and took the blame, allowing the two groundskeepers to keep their job at the park.
Knowing that they have no time to waste, the two brought "Pops" to the funeral where he was to deliver an eulogy and hopefully, help the humanoid lollipop from Lolliland to move on from the loss. Unfortunately, things doesn't always goes the way one hopes it does as "Pops" grins to himself as he puts on his top hat and thought, "Now Pops, for stealing my identity that night and my chance for glory as a golden belt champion, I will finally get my revenge by destroying your reputation!"
Mordecai notice something strange with Pops and so turns to Rigby who was seated right next to him.
"Pssst, notice something weird about Pops?" he asked.
"I know, he usually hates giving speeches when facing the audience, we even offered to draw a face on the back of his head but he took off just like that." Rigby answered.
"Pops" clears his throat and said, "I know today is a terrible tragedy as the old man have kicked it, but however, what I would like to say is that...YOU PEOPLE CAN KISS MY ASS! HAHAHAHAHAHAHAHAHA!"
"THIS OLD MAN CAN ROT FOR ALL I CARE AND HE CAN POP IT IN HELL!"
"Pops" continues to laugh maniacally as he flips the casket over a Mr. Maellard's corpse spilled right out in front of the shocked audience. Soon, "Pops" then body slams Mr. Maellard's body and got him on a choke hold before snapping off the dead old man's arm like a twig. At that point, much of the audience begins to freak out and that's when everyone realize something was wrong with Pops.
Benson turns to the two groundskeeper and screams, "MORDECAI! RIGBY! WHAT THE HELL IS GOING ON HERE? WHOEVER THIS IS, THIS ISN'T POPS!"
"Wait, what...really? C'mon Benson, I know Pops have been acting strange lately but you have to realize that some people take their loss differently, I mean it's clear that he's mad because his dad died on him." said Mordecai.
"Yeah, and besides, we all get fired up when making speeches so we should just leave Pops to do whatever he wants, he'll get burned out eventually." said Rigby.
"I DON'T KNOW WHERE YOU MET THIS GUY BUT THIS ISN'T POPS!" Benson screamed shortly before Mr. Maellard's head was tossed right over him.
Then Skips arrives and said, "I got there as fast as I could, unfortunately there was an accident at the store selling funeral bouquet and there was a delay on getting the burial ready at the cemetery because some moron thought it was a place to sleep."
"With that said...who the hell is that?" the yeti asked as he points toward "Pops" tearing up Mr. Maellard's corpse from limb to limb.
"That's Pops...and he's taking the old man's death really hard." Rigby answered.
Skips shakes his head and said, "This isn't Pops, whoever he is, this lunatic is looking to destroy Pops' reputation from the looks of it."
"Then what are we gonna do?" Rigby yelled.
After finishing his job on Mr. Maellard's body, the imposter runs off screaming and begins to start terrorizing the park.
"We must stop him before more damage is done to the park." said Skips as Benson's car explodes right behind them.
"MY CAR!" Benson screamed.
The bubblegum machine then turns toward a blue jay and a raccoon and said, "MORDECAI, RIGBY, YOU IDIOTS INVITED THIS LUNATIC SO THIS IS YOUR RESPONSIBILITY!"
"IF YOU TWO DON'T CATCH THIS GUY BY THE END OF THE DAY, YOU'RE FIRED!"