The monster family embarks on a vacation on a luxury monster cruise ship so Drac can take a summer vacation from providing everyone else's vacation at the hotel. It's smooth sailing for Drac's Pack as the monsters indulge in all of the shipboard fun the cruise has to offer. But the dream vacation turns into a nightmare when Mavis realizes Drac has fallen for the mysterious captain of the ship, Ericka, who hides a dangerous secret that could destroy...

The scares never end at the world's biggest mini-golf course, where reigning champ Shaggy plays A Terrifying Round with a Menacing Metallic Clown, and scores. Then, the gang heads to Dooville to visit Scooby's family, and arrives just in time to attend Professor Phyantasmo's Circus Fantastique, where the calliope music is hypnotizing the crowd to join their 'circus of living evil!' Finally, our crime fighters encounter Bedlam in the Gig Top at a jinxed...