"Wishbones" A supernatural skull called Thrombumbular grants nine wishes to various Endsville residents in the hopes of returning to its own dimension.
"Dream Mutt" When Billy asks for the perfect dog, Grim makes him one that turns out to not like being Billy's relegating him to the doghouse."Scythe for Sale" Billy accidentally sells Irwin the scythe that Grim uses for his supernatural powers.
"Jeffy's Web" When Billy goes in search of a toy truck that fell under the house, he gets caught in Jeffrey's web. Always terrified of his "son" Jeffrey, Billy is even more frightened when Jeffrey's lays thousands of eggs, thus making Billy a grandfather."Irwin Gets a Clue" Hoss Delgado takes on Irwin to be his new sidekick.
"Duck!" An invisible duck that only Grim can see terrorizes him by making everyone think Grim is passing gas. But when the duck starts to terrorize Mandy, it meets its match."Aren't You Chupacabra to See Me?" Billy's new best friend starts to suck the life out of him.
"Zip Your Fly!" Billy and Mandy get their hands on a zipper from Grim's robe that allows him to cut things in half and then reattach them in new combinations."Puddle Jumping" When Billy jumps into his swimming pool, which by accident was magically transformed into a dimensional portal, he finds himself in swamp where he is to be baked into a pie.
"Runaway Pants" An episode of "The Billy Zone" reveals the story of how Billy changed the world by wearing magical pants, which are really a shapeshifted Junior."Scythe 2.0" Grim's scythe is getting dull, so he attempts to sharpen it. But unfortunately he breaks it and has to travel to the underworld for a replacement.
"Billy Idiot" Billy gets accepted to a school for gifted dancers. But something about the school is a little strange."Home of the Ancients" Grim is found guilty of misuse of his power and has to do community service at a senior citizens' home.
Mandy decides to enter a beauty contest to best Mindy, but the contest will require her to do something she's never done before: smile.
"One Crazy Summoner" Billy, Mandy, and Grim try to teach Nigel about love."Guess What's Coming to Dinner" Hoss Delgado and Eris pretend to be Billy's parents
Billy's mother regresses to her childhood. The story of the creepy tree in Billy's front yard is finally explained.
Grim is blamed for a series of owl kidnappings. Nergal seeks aid to stop being a loser.
Billy gets advise on being cool from the ghost of Lord Byron. Grim receives some answers from creatures that dwell in mushrooms.
Billy and Irwin get jobs making prank calls.