Scooby-Doo and Shaggy must go into the underworld ruled by the Goblin King in order to stop a mortal named The Amazing Krudsky who wants power and is a threat to their pals, Fred, Velma and Daphne.

　　当卡拉汉家掀起一个和平的家庭度假在山上他们没有想到个人的恶魔跟随他们。孩子们发现在僻静的小屋一个超自然的存在和两代人的秘密被揭示，永远变化着的生命以及死亡。