Wray Nerely is a struggling actor who starred as a spaceship pilot on Spectrum, a cult classic science fiction series. He navigates the odd people and incidents he encounters along the way while learning to love the fans he has.
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.
After living peacefully in the caverns of a small town, a stranded group of aliens turn deadly as they fight for their existence, betraying the compassionate chief of police who has protected them for 28 years.