Beneaththefakebloodandcheapmasksofcountlesshauntedhouseattractionsacrossthecountry,therearewhispersoftrulyterrifyingalternatives.Lookingtofindanauthentic,blood-curdlinggoodfrightforHalloween,fivefriendssetoffonaroadtripinanRVtotrackdowntheseundergroundHaunts.Justwhentheirsearchseemstoreachadeadend,strangeanddisturbingthingsstarthappeninganditbecomesclearthattheHaunthascometothem...

Fivehaunted-houseenthusiastfriendsarestilltryingtorecoverfromthetraumaofbeingkidnappedthepreviousHalloweenbytheBlueSkeleton—agroupwhotakes“extremehaunt”toanotherlevel.Theydecidetofacetheirfearsinordertomoveonandgobackoutontheroadtofindmorehauntedhouses.However,ominoussignsoftheBlueSkeletonstartappearingagain…