Vacation Haunt

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