Parker has very bad body odor, but Josh won't tell him for fear of his reaction. Meanwhile, Mr. Meaty is getting ready to introduce their new Buffalo Burrito, and Wink hires two actors to be Bucky Buffalo for the big intro, but they are zapped by the Mr. Meaty Security Bot, who is lurking around the mall. Parker volunteers Josh and himself to be the buffalo, and Josh is forced to get inside the buffalo costume with a very smelly Parker. Mr. Meaty's latest product, the Ms. Meaty burger, is out, and Josh and Parker try to sell it to girls for their phone numbers. But none accept. Parker, however, has eaten 12 and glugged down the special Girly Sauce, which painfully turns him into a girl. Josh sees this as a way to find out why none of the girls are into him.
Josh and Parker try to help Ashley Steinberg get a zit off of her nose with a special concoction, "Nuke 10", but it burns off her nose and they attempt to glue it back on with "Nose Balm 20". Soon they replace her nose with a sausage after her original nose falls into the deep fryer. Everyone likes the new craze for noses made of Meat. Josh is upset that the mall girls don't like him because he's skinny. Three eight year old Hip-Hop gangster brats called The Tater Tots harass him, call him "Skinny Butt", and give him a wedgie so he and Parker go to the store to get protein powder, despite Parker telling Josh to listen to Master Kindu, and encounter a jar on the bargain rack that contains the demon Wedgelor. The demon gives Josh a big beefy body, but doesn't enlarge his head to match, And Wedgelor goes on a wedgie rampage in the mall.
After Parker gets caught in a meat explosion caused by Josh, he storms out of Mr. Meaty. Not only did Josh refuse to apologize, he called him "Porker". But when Parker accepts a new job at the "Soy What" counter across the food court, Josh finds that he can’t cope without his friend and heads across the court to apologize. Instead, he discovers Parker about to be sacrificed, and eaten by a vicious soy cult. The two friends overcome their differences and battle their way free, armed with such delicious product. Parker is hungry and he tries to get Josh to give him one bite of his sandwich. Josh gives in and Parker eats almost the whole thing. Josh calls him a moocher. Parker then goes around the mall and takes one bite of everyone's food. Then he comes back and eats a raw burger and a tapeworm soon grows in Parker's stomach and eats the food Parker mooches before Parker can.
After Josh abandons Parker for a girl at the premiere of Star Raiders IV, Parker looks for a new best friend. He ends up making one out of ham and other meat from Mr. Meaty and names him Hamish. He and his new friend go to the movie theater to harass Josh and his date. The Tater Tots challenge Josh to a dance-off, and Josh wins. But when another challenge comes, Josh reveals that he only has one move.
Josh and Parker discover a vampire hiding in the freezer and decide that becoming undead is the perfect plan to get away from all the boring rules they endure every day working for Mr. Meaty. But they quickly find out that being vampires is not as cool as they thought. When Lizzy, a new employee, arrives at Mr. Meaty, Parker quickly falls for her. She’s a messy eater, she likes Star Raiders, and her burps smell like his favorite burger combo. Only problem is, Josh thinks she’s pretty hot too. The two boys get into a game of one-upmanship, trying to impress Lizzy – a game that Parker wins. But when Josh discovers that Lizzy’s really a lizard-faced alien, He tries to tell Parker, but Parker doesn't believe him.
When Josh talks Parker into going on a double-date with him, he has to change his buddy from zero to hero. Despite all the training, he still is a zero; and the date is disastrous. Until Parker finds a girl who talks a little Kalingi herself. When Parker suddenly runs off to the bathroom, and Josh has to cook fries and causes an overflow of oil, He blames Parker for it. After his guilt takes him over, Josh confesses to Mr. Carney.
Meatycorp has come up with a new robot, named Chip 2.6, who is assigned to work at the Mr. Meaty at Scaunchboro Mall. Josh takes a liking to Chip, but Parker believes it is out to take their jobs.
Parker finds a magic crystal and receives a unicorn horn with the power to heal. Josh gets jealous and summons the unicorn with the same crystal, only to become an ugly looking horse himself! Josh tells Parker to stop such being a dork and act like him, so Parker does --literally. Now, they have a face-off, hosted by Doug to see who is the real Josh.
Parker makes Josh a meat girlfriend. Everyone at the mall makes fun of her and Josh defendes her . Then Barb leaves Josh for a prime rib. Parker orders a Baby Yeti that he saw on a commercial on Asian TV, and names him "Eddie." That night, when Eddie eats everything stored in the freezer and grows into a giant yeti the next morning as a result, Josh and Parker have to think of a way to convince the management to provide them with more meat. But when Wink comes by to drop off the new products, what will Parker do with Eddie? Even worse, Mr. Carney and Wink find Eddie, and decide that they can do something about Eddie and Parker: Have an Abominable BBQ!
A strange new device is brought to Mr. Meaty, called the SALIVATOR-X8, guaranteed to increase meat sales by 200%. When activated, it turns the patrons of the mall into meat-feasting zombies. Doug saves Josh and Parker from the zombies and destroys the machine. After Ken and Darryl steal the first Game Craze, that rightfully belonged to them, Josh and Parker build a time machine to go 2 months into the future. They find Scaunchboro Mall to be invaded by baboons. It turns out that the machine sent them into the year 2676, where baboons rule the earth.
In this flashback episode, Wink tells the story of how he first hired Josh and Parker and how they thawed out Mr. Carney and how Wink received an implant on his neck. Josh and Parker ask Ping, the owner of Chop Schtick, to teach them on how to be ninjas, so they can plot revenge on Ken and Darryl.
Parker gains superpowers as a bonus from Mr. Carney, but when he sees that Josh is annoyed, he finds a way to make Josh feel more important. Years of being insulted finally takes a toll on Parker, who turns into a rampaging beast and insults everyone.
Parker gets a girlfriend, but is very nervous about kissing her. He turns to Josh for guidance. Britney asks Josh to throw a Mr. Meaty birthday party for her little brother. When Josh and Parker feed the boy a piece of very sugary cake, he goes hyper and runs crazy through the mall.
A video leaked into the internet causes Parker to literally die of embarrassment, but it's not his time to go yet. Mr. Carney books teen pop star, Jesse Lumberpond to hold a concert at the mall, and Josh and Parker scheme to be in his band, until he is knocked unconscious by Parker.
Josh throws a party while his family is out of the house, but worried about being cool, he will not allow Parker to come. Parker shows up anyway. The cool kids and the geeks must work together to defeat an evil ork.
Josh and Parker keep putting off the making of their Ninja Zombies movie, so their future selves, from 80 years later, who still haven't made the movie, come back and try to convince them to quit procrastinating. After Doug the security guard is injured, Parker decides to take his place. When the position goes to Parker's head, Josh organizes a resistance movement against him.
Parker is sick of his mom babying him, so he moves out of the house. Parker is visited by the Puberty Fairy but struggles to hang onto his childhood.
Josh and Parker find out that their childhood bully has returned to Scaunchboro, and they plot to get revenge on him. But Josh realizes that Brent has changed and tries to get Parker to call off their "intergalactic revenge." Josh fails his driving test, and instead of admitting it to Brittany, he takes her illegally to the drive-in, secretly using Parker to give him driving guidance.
Josh dreams he stars in a musical where he must save Princess Brittany from Mr. Carney's evil clutches using his "diamond voice".
One day at Mr. Meaty, Parker tells Josh that a man named Lucas E. Romero is having a horror movie competition. Josh and Parker try to make a "" ninja zombies" movie. At home, they try and think of an idea for their movie. They realize that they can just improvise instead. So they put up a sign that reads "Ninja zombies bikini babe robot war etc....auditions today". They say that they're gonna find some girls in the mall to play the "bikini babes". They call many people to audition for the movie like Gord and Mr. Carney. Josh (who is controlling the camera) and Parker then go to a graveyard. They go to the deceased horror film actor, Karlon Bugosi's grave. Parker starts digging the ground and sees the coffin. Goth Girl (whom josh and Parker brought along with them) then reads an ancient chant to bring Bugosi back from the dead (that she found on a website called raisethedead.com). It actually worked. When Parker asks Mr. Bugosi if he would be in their movie, he goes berserk and tries to eat Goth Girl's brain. Josh and Parker manage to save Goth Girl and tie Mr. Bugosi to a tree. Parker kept begging him to be in their "Ninja zombies " movie. The zombie actor refuses and says that he only eats brains. Josh the tells Mr. Bugosi that if he acts in their movie, they'll serve him an all-you-can-eat buffet of brains. After their movie was over, Mr. Romero reacts to it as an "awesomely terrible" film, but wasn't that bad, as his first movies were bad as well.
