In the course of slaying a giant muffin, Lula gets stuck in a tree stump. Unless they can free her, the Sprite of the Stump will become king. Later, Dave tries to help people by becoming a psychofloobicologist, but awakens an angry god instead.
Dave finds a girlfriend, but is the relationship too good to last? Later, a man from 1994 goes back in time looking to conquer the simple people of the past with modern technology.
Candy takes a vacation, naming Dave the King in her absence, but the power goes to his head. Later, Fang meets her hero, Strom the Slayer. Unfortunately, he's come to slay Faffy.
The family form a rock band, but the Dark Lord Chuckles the Silly Piggy plans to use their fame against them. Then, when Candy builds up a hefty shopping bill, the only way she can stay out of trouble is to become a bill collector herself.
Faffy falls in with a gang of bad dragons, who convince him to betray Dave and Fang. Then, a sibling argument between Dave and Candy accidentally awakens a terrible danger which threatens all of Udrogoth.
Dave and his family fight a swarm of magical termites with magic, weapons and decorative Knick knacks. Later, Lula's sister, Molly, comes to stay and the family has to put on a show to impress her.
Sick of her princessly chores, Candy foists them onto her friends. But then the Dark Lord Chuckles the Silly Piggy and his dim-witted nephew attack. Later, Fang tricks Dave into joining the army, but his natural strength makes her feel inferior.
While Oswidge puts off getting his nose and ear hair trimmed, Dave and Fang must agree on the best way to fight an oncoming band of monsters. Then, to prove to Dave that she's not selfish, Candy helps a lost tribe reclaim their kingdom from invisible monsters.
Sick of constantly being defeated by Dave and his family, the Dark Lord Chuckles the Silly Piggy forces the narrator to change the story. Can Dave defeat the evil villain AND rehearse the Pageant of Udrogoth?
First, Candy finds out that all the cool kids in Udrogoth have ghosts, but the one Dave and Fang find to haunt their castle is more trouble than he's worth. Then, evil princess Irmaplotz puts Dave under a terrible (bovine) curse.
The family try to give Faffy obedience training, unaware that the Dark Lord Chuckles the Silly Piggy is plotting to take over Udrogoth. Later, Dave tries to become a gourmet chef but his entrees keep coming to life and attacking people.
The Dark Lord Chuckles the Silly Piggy poses as King Throktar to trick Fang into helping him. Then, it's the battle of the exes as Dave and Irmaplotz face off in a sporting event unlike any other.