Dr. Weird creates a machine which makes rainbows. The machine is then stolen (or found) by two leprechauns. They send messages over the Internet, luring people to the park with the promise of gold. Frylock doesn't fall for it; Carl does. The Aqua Teens intervene to force the leprechaun thieves out of business.
Dr. Weird creates a mutant creature named MothMonsterMan. The creature escapes and flies to the Aqua Teens' house, attracted by the light. The Aqua Teens have been using Carl's power, and he takes the power cord. Craving light, the moth creature phones the Aqua Teens from a school bus parked outside, but Shake believes the caller to be Dracula. Frylock, Shake, and Meatwad travel to Memphis, because Frylock wants to prove to Shake that Dracula is dead (his grave is in Memphis). When the Aqua Teens return home, they still have to deal with the moth creature.
As a climax to the season, Dr. Weird unwittingly creates a powerful vortex within his lab. The same vortex sucks him and his assistant Steve into another dimension. Then, the vortex reappears in Carl's backyard - this time, taking Carl and Frylock after an uninspired rescue attempt by Master Shake. Seeing an opportunity, Master Shake lures and locks Meatwad in a dryer. Frylock returns to find Meatwad charged with abnormal levels of static electricity. His attempts to dispel the electricity only result in the creation of an enormous electric balloon, coined by Master Shake as "Balloonenstein."
Frylock attempts to contact extraterrestrial life forms, and succeeds. Frylock is transported aboard an alien spacecraft in space. Shake visits the spacecraft also. The two aliens are bumbling fools, who say that their aim is world domination. Meanwhile, back on Earth, Carl had paid Shake to mow his grass, but Shake subbed the job out to Meatwad. Meatwad burns Carl's lawn. When Shake returns from space, he must face his angry neighbor Carl.
The enormous horrible mess that Master Shake has made in the kitchen is drawing flies and beginning to rot. It becomes so fetid that it gives birth to a sentient mould growth, who Meatwad names Ol' Drippy. The large talking fungus turns out to a very gracious and agreeable roommate, way more so than Shake, and the teens are tempted to kick out Shake and replace him with Ol' Drippy.
Meatwad listens to rapper MC Pee Pants' song "I Want Candy" day and night. The constant noise annoys Master Shake, who threatens a violent retribution. The music also annoys their neighbor Carl. Both Carl and Meatwad have developed a serious sweet tooth since Meatwad started listening to MC Pee Pants. The vigilant Frylock is disturbed by some of MC Pee Pants' lyrics, which he says foretell of a violent plot. Meanwhile, Carl and Meatwad depart for an address which is mentioned in one of MC Pee Pants' songs.
Master Shake receives a phone call from aliens, who he believes to be Hollywood casting directors offering him a part in a movie. They lure him to their spaceship, where he is whisked into space. The aliens send a replicant to live with Meatwad and Frylock. The replicant only vaguely resembles Shake, so Frylock sees through the ruse. Undaunted, the aliens give their replicant orders via a videophone. The replicant seems woefully inadequate to the aliens' task of world domination.
Master Shake sells Meatwad to a circus, but Frylock and Meatwad thinks Meatwad is going to computer camp. The man who bought Meatwad turns out to be the prince of Jupiter and he wants to take over the world.
Frylock and Meatwad discover a mummy under their house. The mummy is almost immobile, but he still can speak. Carl, unfazed by the mummy discovery, explains that the house's previous tenants had strange ways. The mummy makes very difficult demands, but Frylock, wary of the possibility of a mummy's curse, tries to satisfy each and every one.
When Meatwad learns through observation that he has no brain, his attitude changes; he becomes listless, bitter, and despairing. Frylock, hoping to cheer Meatwad up, searches for the means to acquire a brain. Carl obliges - with a fresh human brain obtained care of his friend, Terry. The effects of the brain transplant are quite dramatic on Meatwad; he begins to read more frequently, he enlarges considerably, and he even goes so far as to create an "anti-matter eliminator."
Master Shake and Meatwad play around with an Internet search engine on Frylock's computer and accidentally invoke the Wwwyzzerdd, a cyber-deity who floods the Aqua Teens' house with real-life pop-up ads. Shake's gullibility does little to help with the situation.
The episode starts with Master Shake going on a rampage, looking for his "stolen PDA." He leads the Aqua Teens on a wild goose chase looking for his PDA, including "hunting alien footprints in the Adirondacks," and "Romulox in the Trenton Tar Pits."
It's Christmas time in the neighborhood, and the members of the Aqua Teen Hunger Force are in a holiday mood. Frylock is trying to ensure that Meatwad gets a gift that he wants. Meatwad, chronically short on cash, plans to decorate the house and make gifts for his friends. Meanwhile, Master Shake and Carl have used Frylock's computer to purchase a mail-order bride from Chechnya. The woman arrives, but when she meets her fiancees, she barricades herself inside Carl's house.
Meatwad is expecting the arrival of his new pet, a bunny. A snake arrives instead, and Master Shake is suspiciously unsurprised. Shake encourages Meatwad to dress the snake up like a bunny. The snake eats Meatwad. Master Shake suggests that they allow the snake to digest his meal. Frylock prepares to blast the snake with his lasers to save Meatwad. Meatwad calls out from inside the snake, asking Frylock to spare the animal. Meatwad then claims that the snake, whom he has named Nathan Scott Phillips, is his best friend.
MC Pee Pants returns, this time under the stage name of MC Sir Loin, with a sophomore album "For Da Shorteez." Meatwad, inspired by the music, takes food and trash from Master Shake, Frylock, and Carl to give to the "Shorteez." However, Sir Loin is simply using all of the trash collected for a plan to break into the First National Bank, and the Aqua Teens soon catch onto this.
Master Shake tells Frylock he will pay the bills, but he doesn't so their water, electricity and cable gets turned off. Frylock wants Shake to learn a lesson about paying the bills so he doesn't pay the bills himself. But instead Shake goes over to Carl and their is a accident.
Frylock plays a team trivia game at a local bar every Tuesday night, but he regularly loses to Wayne the Brain. Desperate for victory, Frylock recruits Master Shake and Meatwad to broaden the team's knowledge base. The trio loses. Frylock realizes that the team's weakness is sports trivia. With desperation mounting, Frylock bribes Carl (using the promise of free food) to join the team for one last attempt at defeating Wayne the Brain.
Frylock says he has invented an extraordinary toilet which uses little or no water. He gives the (as yet untested) toilet to Carl, and leaves it in Carl's front yard. Skeptical about the toilet, Carl at first refuses to use it. Frylock tells Carl that the toilet has an infrared privacy screen. Such a screen would allow Carl to use the toilet outside and still maintain his privacy. When Carl attempts to flush the toilet, his body is pulled down into the bowl and destroyed. The Aqua Teens retrieve Carl's severed head from the toilet bowl. The trio then attempts to keep Carl's head alive and attach it to various machines and robot-like bodies.
It's Labor Day, and the Aqua Teens are having a cookout. Frylock has cooked up some tofu. Shake and Meatwad want beef instead. Shake brings a cow, and they fry it in a vat of oil. Frylock warns Shake to dispose of the oil responsibly, but Carl and Shake dump the oil in the woods. The trees exact their revenge by apprehending Carl and Shake. Shake goes on trial, and Frylock becomes his reluctant advocate.
Meatwad is having a birthday party. Master Shake uses this event to showcase a heavy metal song that he has recently created with the lyrical and musical aid of Geddy Lee and Zakk Wylde to replace the "Happy Birthday" song. However, Shake becomes heavily in debt as a result - to the tune of 1.4 million dollars. Eventually, Zakk comes over to get his money, and Shake tries to appease him unsuccessfully with a live concert opportunity.
Frylock tells Shake there is buried treasure right underneath the spots in the front yard where he wanted Shake to plant the azaleas. After Frylock tells Shake to dig just 4-6 inches deep, Shake digs to a depth of 6 feet. Shake falls in the hole, and he finds a cave which contains the Broodwich, a delicious but dangerous sandwich. Every time Shake takes a bite, he is transported to a hell-like dimension where he is menaced by a figure wielding an axe. Shake is not condemned to this dimension forever, because he refuses to eat the tomatoes on the sandwich.
Without Carl's permission, Master Shake uses Carl's now destroyed vehicle for use in a demolition derby. After discovering that the car is wrecked, Carl donates the car to the kidney foundation - a group of which Meatwad is a beneficiary. Meatwad receives the totaled car, and the Aqua Teens (specifically, Master Shake and Meatwad) embark upon the near-impossible task of repairing the car.
Carl has installed a laser security field around his house. The field can be seen from space, and soon aliens are visiting the Aqua Teens on the lawn. These aliens speak English. Their primary interests are finding love and drinking beer. The aliens mistake each of the Aqua Teens for romance-minded females. Shake bonds with the aliens, while Frylock is merely annoyed with them. Eventually, one alien departs in their spacecraft, which leaves the other alien stranded at the Aqua Teens' house.
When Meatwad finishes his new Moon Master video game, two moon-based aliens visit him. The aliens try to sell Meatwad some accessories that he will need to fight their oppressor, the Gorgatron. Master Shake sees Meatwad's new costume and video, he decides to give the Moon Master a try himself.
Clips from older shows are used. The Aqua Teens talk a lot about their past experiences. Carl goes crazy after finding out that Tara the porn star is visiting the Aqua Teens. He then runs into the grim reaper who poses as a gutter salesman.
Two floating brains (calling themselves Carl) hire Meatwad to advertise their dilapidated car wash. He is unable to attract customers, so with Shake's help, they get Carl to take his car in. The brains wreck his car, gas him, and remove his brain.
As he is porn surfing, Carl hears women singing in the Aqua Teen's house and finds it is now occupied by two beautiful sirens and John Kruk, who seeks revenge for Carl throwing a battery at him at Shea Stadium.
When a nuclear submarine goes missing off the coast of Wyoming, Shake is called in to lead an elite search team through the Caves of Reginald. It's an emotional roller coaster in pure darkness that would drive a normal person insane. Meatwad and Frylock aren't in it.
The Aqua Teens have re-branded themselves as the "Aqua Unit Patrol" and are now detectives. After a failed investigation they visit Dr. Weird's lab, where Master Shake freezes himself in a cryogenics chamber.
Nine years in the future Shake discovers the world is now controlled by a god-like figure named Allen who kills anyone who misbehaves in order to maintain the world as a Utopia where everyone has respect for one another.
After watching "The Granite Family" on TV, Master Shake feels like going back to the stone age to identify with the show. To achieve that, he causes a war between the United States and Russia that leads the world to chaos, thinking that can take him back to the stone age.
Starting from some magic tricks by Meatwad, Master Shake goes on a betting spree in which he keeps losing, while Meatwad and Carl keep winning. Bloddied and bruised, Shake can't still learn his lesson, eventually killing himself with one of his bets.
Paul, a monster that previously appeared on the show, is seen destroying the city due to more problems with his wife. Frylock, however, has built a robot that can stop him but his main problem is getting the rest of the squad and Carl to cooperate and help him.
Frylock invents the "Buddy Nugget", a gadget that gets you friends. It works on Meatwad so he plans on making some money out of it. Master Shake's idiocy and his own "Buddy Nugget" friend Dr. Balthazar are his main obstacles.
Meatwad, a fan of the "Zucotti Manicotti" show, asks for a lot of the show's merchandise for Christmas but Frylock can only afford to give him a puppet. Master Shake uses the puppet to scare Meatwad making him think it's evil, despite Shake being obviously controlling the puppet. The real Zucotti from another planet arrives to clear the mess, but a confused Meatwad has to decide which one is the real Zucotti between the real and the puppet, and shoot and kill the fake one.
Carl and Shake attend a show from fictional Heavy Metal band Totem Pole, Carl's favorite band. The band happens to have a weird ritual on stage that involves making a human totem with a troll in which heads have to be shoved up rear ends. Carl and Shake fall victims of this ritual and of the skeletons the band accidentally raised while performing...