Viking ghosts try to keep people away from a lake and try to steal the area's energy there.
The gang visits Daphne's old friend Lisa on Skull Island and helps her discover the truth of a dark family secret.
The gang investigates during a hang-gliding competition.
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.
The kids investigate when a witch turns Pa Hatfield and his 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.
A huge sea monster disrupts the kids beach party, but when they take refuge in an old house they run into sea.