Original Air Date: July 25, 2003
Nergal and Sis sign up their son, Nergal Jr. for the winter camp that Harold and Grim have founded. Junior fears that he won't fit in, but is ultimately shipped off by his parents. He arrives at Camp Paradice before the other kids, and is immediately insulted by a local boy, whom he then attacks and takes the form of.
The other participants arrive later in a bus, and are forced to spend the weekend in a freezing barn where the bed sheets and pillows are frozen solid. Being from the Center of the Earth and all, Junior is not happy with the accommodations. He takes over the body of the strict, no-nonsense camp counselor and hides out in his cabin.
The next day Junior keeps taking on the forms of the other kids in order to be "popular". He covers their sleeping bodies in snow and goes unnoticed until Mandy smells a rat. Billy investigates, and as he finds the others, Junior confronts him. He asks to be Billy's best friend, but is rejected. Enraged, he ensnares Billy in his tentacles.
In the meantime, Mandy has put the pieces together and deduced that Junior is the son of Nergal. She uses his teddy bear Mr. Bonkers as leverage to make him let go of Billy. Ashamed and heartbroken, Junior bursts into tears. Billy forgives him and promises to be his friend, but accidentally insults him upon seeing his true form. Mandy returns home with Nergal Junior disguised as Billy.
"Son of Nergal" contains examples of…
- Berserk Button: Do not call Junior a “freak” if you know what’s good for you.
- Call-Back: Mandy’s Title Drop could also be doubling as this, specifically to Grim saying, “Not so fast, Nergal!” when he came to Billy and Mandy’s rescue in the episode Fiend is Like Friend Without the "R".
- Kill and Replace: Essentially what Junior does to the campers and camp counselor.
- Shout-Out:
- The camp counselors name is based on the whiskey Jack Daniels and Jack Torrence from the book and movie, The Shining.
- It's possible that this episode is a parody of John Carpenter's The Thing, as both the episode and the movie share the same premise of a monstrous shape-shifting being that slowly assimilates in an isolated camp surrounded by a frozen landscape.
- Title Drop: Mandy does this when confronting Junior.Mandy: Not so fast, Son of Nergal!
Original Air Date: July 25, 2003
While Billy and Mandy were playing in a park. Billy was playing on a swing and Mandy pushes it so hard that Billy goes high in the air with his swing which was tied with a rope. Meanwhile Grim comes and stands where Mandy was and gets hit by the swing Billy was riding on, which throws him into air.
He lands somewhere in Europe (possibly either Germany or Switzerland), and ends up with a paint bucket, which leads to Grim looking like a nun. After being taken to a nunnery and being shown a book, it turns out that the younger nuns think that Grim's a nun called "Sister Big Momma." At first, Grim tries explaining that he's not a nun—in fact, he's the exact opposite of a nun—but decides to pretend to be Sister Big Momma, and ends strongly bonding with the younger nuns and having a lot of fun with them.
Meanwhile, Billy and Mandy come by the nunnery to take Grim home. They ask the painter where Grim is, and he laughably says that Grim is "reaping" behind the fence he is painting. After the kids finally reveal to the nuns that Grim himself isn't actually a nun, the nuns, understandably, get mad at Grim for lying to them. Grim apologizes to the nuns for lying to them, but assures them that he loved spending time with them and had a lot of fun with them. The nuns forgive Grim and launch him, Billy and Mandy back home to Endsville.
"Sister Grim" contains examples of…
- Mistaken Identity: Everyone at the nunnery confuses Grim for a nun known as “Sister Big Momma”. He tries to convince them of the truth at first, but ultimately decides to play along because he “never had any children of his own”.
- Strange Minds Think Alike: Both Grim and Billy describe Grim as being "the exact opposite of a nun" on separate occasions to the same person.
Original Air Date: July 25, 2003
Billy and Irwin are building a go-kart for a race in, what is presumably Billy's basement, when Mandy opens the door to the basement. Billy and Irwin laugh about how Mandy and Grim can't participate, because they are a girl and a skeleton, respectively.
Later, the race is about to begin. The competitors include: Sperg, Mindy, a tag team of Billy and Irwin, and Mandy. Strangely enough, Grim is Mandy's go-kart. There is also a "mystery contestant" (wearing a paper bag over their head) in a little red wagon. The entire crowd laughs at said mystery contestant. The race begins. Mandy and Mindy are neck-and-neck, but Sperg is busy ordering a cheeseburger, but when Sperg sees Billy and Irwin. He decides to get serious. He chases after Billy & Irwin, who pass by Mandy and Mindy. Mindy's car eventually becomes stuck in traffic, and Sperg causes Mandy and Grim to nearly fall off the suspended highway. Sperg destroys Billy and Irwin's go-kart, and Sperg is close to the finish line, but Grim uses his scythe to open a whole in the ground, which Sperg falls into. Grim is about to win, when the hole opens up again, propelling Grim, Mandy, and Sperg into the air, Sperg grabbing Grim's collar to bring him down too. The mystery contestant crosses the finish line first. Mandy unmasks the mystery contestant, who turns out to be Pud'n. Everyone cheers for him, but overcome by stage fright after being unmasked, starts crying.
"Go-Kart 3000" contains examples of…
- Brown Bag Mask: This is how the Mystery Racer hides their identity.
- Darkhorse Victory: Pud’n wins.
- Downer Ending: Neither Billy and Irwin nor Grim and Mandy win, and the winner ends up breaking down due to stage fright, leaving the episode ending on a rather uncomfortable note.
- Early-Installment Weirdness: Similar to "Who Killed Who", Irwin has no problem excluding Mandy here. The fact that this episode aired after (but produced before) "Crushed", where his crush on Mandy is finally established doesn't help much.
- The Reveal: The Mystery Racer is Pud’n.
