What a predicament! The Amazing Krudsky, a failed carnival magician, steals the light magic from Princess Fairy Willow, and Scooby-Doo and Shaggy must stop him or everyone will be turned into horrible Halloween monsters! Our heroes board the Grim Reaper Railroad into the fantastic world of Halloween Land to retrieve the powerful Goblin Scepter from the Goblin King before midnight. Along the way, they encounter the infamous Headless Horseman, the helpful Jack O\'Lantern and a frisky broomstick that takes them on the ride of their afterlives. Besides the Mystery, Inc. regulars, the Guest Vocal Cast is a Halloween Hoot, including Lauren Bacall, Tim Curry and Heroes\' Hayden Panettiere. Your house will shake with enchanted creatures and weird worlds in this merry animated adventure!