Beneath the fake blood and cheap masks of countless haunted house attractions across the country, there are whispers of truly terrifying alternatives. Looking to find an authentic, blood-curdling good fright for Halloween, five friends set off on a road trip in an RV to track down these underground Haunts. Just when their search seems to reach a dead end, strange and disturbing things start happening and it becomes clear that the Haunt has come to them…

After the death of Shaggy's Uncle Beaureguard, he, Scooby and Scrappy arrive at the late uncle's Southern plantation to collect the inheritance. But as soon as they arrive, they find it is haunted by the ghost of a Confederate soldier. With this spook on their tails while they solve riddles in search of the inheritance, they seek help from the Boo Brothers, a trio of ghost-exterminators to help catch this nasty ghoul.

Fabrizio De Angelis leaves it all on the sweat-stained mat at the strip-mall karate studio that hosted the bone-crushing, senses-shattering, kickpocalypse between arch rivals Kevin and Jeff! The final battle would have been pretty lame (well, lamer than it was) if it hadn't been built toward with an unceasing increase in tension as Kevin and Jeff clashed in competitions where the stakes only got higher and higher and even freaking higher! Why, by the time that Kevin had bested Jeff in the race through the Tunnel of Death (neither of them died making the tunnel's name an unfortunate misnomer), I was thinking that surely nothing could top that! Well, nothing but a training montage!

Conducting clandestine experiments within the morgue at Miskatonic University, scientist Herbert West reveals to a fellow graduate student his groundbreaking work concerning the re-animation of fresh corpses.