The gang is in Japan for a baseball game involving the American Team vs. Japanese Team for the Baseball Diamond. But during the game, a demon appears from the dugout.
The gang meets up with an archeologist, Mr.McGee and his assistant Chuck Hunt, while on vacation in the Grand Canyon. They have discovered a city in the cliffs that seem to be haunted by a mysterious Demon Bear.
When Professor Spaulding, of Green Hills Observatory, discovers a new star, it doesn't take long before the Star Creature comes to frighten everyone off.
The gang attend the Batty Awards Show, and soon it is interuppted by a Shadow Demon. It seems he wants to put an end to the show, but why? Is he really someone wanting to get even, for not getting an award?
The kids take a vacation to the Pratt's ski lodge, but there not the only ones. Pretty soon the ghost of Jeremiah Pratt shows up to look for his lost caravan and a fortune in gold.
Attending a magic show at a fancy hotel on Atlanta's boardwalk, appears the angry ghost of the magician former teacher. He soon makes a very valuable black pearl dissapear, and the kids are out to find it.
On a vacation to the Greek Islands, the kids encounter some very scared natives. They tell the kids of the Minotaur, who comes out at night to frighten them away and rule the island.
The gang heads to New York City, and drops off Shaggy, Scooby, and Scrappy, so they can visit the old neighborhood. Soon Scooby is kidnapped and it is up to Scrappy and his puppy friends to get him back.