Jack, a headless prankster from Grim's past, uses Billy to steal Grim's scythe so he can destroy Grim and take over the world with demons from the Netherworld.
Unfortunately the movie Billy & Mandy's Jacked-Up Halloween is not yet available on HBO Max.
Directing | Robert Alvarez | Director |
Directing | Juli Murphy | Director |
Writing | Maxwell Atoms | Writer |
Writing | Brett Varon | Writer |
Writing | Paul McEvoy | Writer |