Vacation Haunt

 is the 27th episode of Danny Phantom: The New Adventures.

Summary
When the bus heading to Minnesota breaks down, Danny, Sam, Tucker, Valerie, Mr. Lancer, Ms. Tetslaff, and the rest of the Casper High students have to stay at an old house for the night in order to get it fixed. But, oh dear, things go wrong when the house gets haunted and villain ghosts Vortex, Nocturne, and Undergrowth cause nightmares, create violent storms, possess everyone into zombies, and get revenge on Danny, Sam, and Valerie. Will they stop them before the bus gets fixed by sunup?

Cast

 * David Kaufman as Danny, Walla
 * Grey Delisle as Sam, Walla
 * Rickey D'Shon Collins as Tucker
 * Jason Marsden as Dash, Walla
 * James Sie as Kwan
 * Maria Canals as Paulina, Walla
 * Tara Strong as Star, Walla
 * Cree Summer as Valerie
 * Ron Perlman as Mr. Lancer
 * Laraine Newman as Ms. Tetslaff
 * Mark Hamill as Undergrowth
 * James Garrett as Nocturne
 * Dave Boat as Vortex

Trivia

 * This is the second Halloween episode; the first being "Fright Night". It references the 1979 movie "The Amityville Horror", "Little Shop of Horrors", "Invasion of the Body Snatchers", "Mothra", and "The Walking Dead".
 * The scene where a boy runs away from the mind vine until it quickly attaches to his head, making him a zombie is recycled in this episode from last series' "Urban Jungle".
 * Danny's family does not appear, and this episode does not take place in Amity Park like in "Claw of the Wild".
 * Unusual for what Undergrowth did to her in "Urban Jungle", he never possesses Sam Manson to become his evil queen again; instead, Sam, along with Danny Phantom, are later bound together in vines and gagged overnose while suspended upside down above a group of bloodthirsty vampire plants, that wait to devour them.
 * Unlike being shown in ''Mothra", the vampire plants grow from the ground.