Faffy is sad because the family forgot to get him anything during Dragon Appreciation Week, so Dave buys Faffy a diseased weasel for a pet. The diseased weasel gets all of Dave's attention, so Faffy runs away. The weasel turns out to be Chuckles The Silly Piggy, who wants to steal a magical fruit hidden in Faffy's room
Well, its the beginning of spring and that means only 1 thing for Dave...SPRING CLEANING!! The rest of the family run away from the castle to avoid cleaning. Dave uses Dusty, the magical cleaning broom and sweeps the castle. After months of cleaning, Dave is in need of one more thing, Castle Polish. Oswidge finds a coupon for Castle Polish at 1/2 price, so they go to the Fortress of Cleanliness, only to find that the Fortress of Cleanliness is the Fortress of Uncleanliness and is a trap set by The Dark Lord Chuckles The Silly Piggy and are forced to clean for him. The family wants to leave, but Dave is too obsessed about cleaning and doesn't want to leave...
Fang gets some pants sent by her parents and doesn't bother to read the note that came with them. This is problematic, because the note explains that the pants are the evil trouser beast and will take control of anyone who wears them. Fang loves the pants at first because they give her fantastic strength – at last she's as strong as Dave! But soon the pants take her over, using her as a tool to get revenge on their hated foe... Oswidge.
Dark Lord Chuckles the Silly Piggy has a plan that can't fail; he kidnaps the Storyteller and forces him to read narration in which Dave loses! Chuckles soon finds himself not only Master of the World, but also the new star of "Dave the Barbarian," which has been renamed "The Dark Lord Chuckles the Silly Piggy Will Destroy You All Variety Hour." But when the Storyteller gets laryngitis, it looks like the winner will be whoever can find the best new narrator.
Evil Princess Irmaplotz summons fourth a cow like something milky to bite dave after he swims in the milk, thus in a month later when the moon is full, making dave a Were-Cow. After terrorizing the villagers, dave is bitten by a cat. He is bitten by an array of other things, including an Egg Beater and the Gym instructor. In the end the gang make dave bite his tongue with a sheet of paper, causing him to become a Wear-Dave. But Fang thought that he's a non-weary Dave so Dave is back to normal before Irmaplotz was surprised that the gang breaks the code making Dave back to Normal. In the next morning, Dave accidently bite Faffy thus Faffy becomes Faffy-Dave singing "Funny Bunny."
Candy has bought too many plush animals. When her room explodes from being stuffed with too much fluff, she finally realizes...that she needs to buy more. Chuckles the silly piggy discovers that candy needs plush toys, and disguises himself as a piggy doll. After candy buys him and takes him home, she immediatly leaves and buys more. Meanwhile chuckles, using his amulet, creates an army of plush animals, in an attempt to conquer udrogoth.
Ned Frischman returns to the past attempting to conquer the world using Jokes. He becomes the most loved man in the world, and creates a sitcom called "I Love Neddy". Dave and the gang create the worlds first reality program, "Real Life Barbarians", which soon becomes more popular than "I Love Neddy". Ned Frishman comes to stop Dave and the gang with his jokes. All seems lost, when dave grabs "Convenient Feathers", and tickles Ned back to the future.
Fang gets a illness, so Uncle Oswich and Dave take her to the doctor. The doctor says that Fang gets the illness that only monkeys get. Fang can only get the cure from the island far far away. The cure is berries. After a long cruise, they reached the island. Fang sets out to find the berries but she is taken away by a pack of monkeys. They accept her at first but when eats the berries and she isn't cured, Fang realizes she is not a monkey. But she is in trouble when she gets chasen by monkeys and Dave is chasen by gorillas.
When Chuckles the silly piggy sets to defeat Dave the barbarian once again, he invents glasses that make whoever is wearing it what they really want to world to be like. Chaos is started when the glasses is worn by Fang, Uncle Oswich, Candy and Dave wears it and they fight only to destroy themselves. Chuckles destorys the world...maybe not!