The ill-tempered Grim Reaper gets into a wager that forces him to become the life-long companions of two scheming youngsters after he loses.
Cast: Greg Eagles, Richard Steven Horvitz, Grey DeLisle, Vanessa Marshall, Jennifer Hale, Jane Carr, Craig Roberts, Terence Maynard, Lucy Borja-Edwards, Aneirin Hughes, Ben McGregor, Luke Bridgeman, Beth Robert, Phil Gray, Ira L. Westley, Woody James
In "Which Came First?", when a field trip across the desert is ruined by the school bus' flat tire, Billy, Mandy and Grim go into a cave infested by giant mutant chickens. In "Substitute ...
In "Bully Boogie", the Boogie Man comes to visit Grim, much to Grim's chagrin. In "Here Thar Be Dwarves", Billy's picnic outing results in him being placed in the middle of a war between the dwarves and the elves.
In part one, Billy and Mandy return to the school of sorcery to protect Nigel from the evil Lord Moldybutt. In part two, Billy and Mandy are kidnapped by the Underworld circus owner because in the Underworld humans are valuable circus freaks.
In "Nursery Crimes", Billy has insomnia from eating a lot of cupcakes in the wee hours of the morning, so he has Grim and Mandy tell him a story to get him to sleep. Grim uses a magic ...
House of Pain: Lord Pain is asked to kill Billy and Mandy. Grim Prophecy: A witch shows Grim his future. Mandy Bites Dog: Mandy borrows Grim's hell-hound to scare Mindy's dog.
In "Lil' Porkchop", Billy gets a small fish that Grim grows into a giant. In "Skarred for Life", Bunny Island has been bought out, so General Skarr moves to Endsville, where Billy ...
Billy does something stupid and ends up with a streak of bad luck thanks to an unwelcome guest. Grim's body and head get separated. His body lives it up while his head ends up down and out.
A kid in a supernatural Porta Pottie gives Billy a new tricycle that loves him too much. Billy learns about the joys of fatherhood from his eight-legged son, Jeff.