When the gang arrives at Viking Lake to see Velma's uncle, he goes missing as well as encountering the ghosts of ancient vikings.

The gang go to visit Daphne's friend, Lisa, for her birthday, which is at a very old hotel that Lisa would inherit on the day after her eighteenth birthday. Velma says that it is believed that there are vampires on the island, but she herself thinks it is nonsense. But when a real vampire shows up and Lisa is turned into a vampire herself, the vampire legend becomes very believable.

On a trip to a hang gliding contest, the gang encounters a pterodactyl ghost that tries to scare everyone away from a cliff. But why?

Scooby-Doo, Scooby-Dum and the gang set out to protect Scoobys' cousin, Scooby-Dee, from the phantom of Milo Booth, a long dead silent film actor determined to keep Dee from remaking one of his greatest films.

The gang goes to watch a grand prix race, only to run afoul of a phantom race car driver that makes the other drivers and their cars disappear.

On the night the gang chosed to spend in the Hatfields' cabin, the Ghost of Witch McCoy appears, to turn the Hatfield family into frogs.

The gang wins a holiday cruise in a competition. Whilst on board, a professor accidentally releases a five-thousand-year-old monster from his time machine.

The gang is having a beach party when a bizarre monster emerges from the deep; soon after they meet an old sea captain who tells them about the monster, only to have it steal his soul.