Join our favorite monster family as they embark on a vacation on a luxury monster cruise ship so Drac can take a summer vacation from providing everyone elses vacation at the hotel. Its smooth sailing for Dracs Pack as the monsters indulge in all of the shipboard fun the cruise has to offer, from monster volleyball to exotic excursions, and catching up on their moon tans. 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 all of monsterkind.