<P> In 1897, Dracula (Adam Sandler) and his friends disguised as humans are traveling on a train to Budapest . However, Professor Abraham Van Helsing (Jim Gaffigan), Dracula's arch - enemy, boards the train and unveils the monsters; the monsters escape by climbing through the roof and Dracula pushes his friends from the train for their safety . Van Helsing is obsessed with destroying Dracula, but is constantly outsmarted by him . </P> <P> In the present day, some time after the events of the previous film, Dracula is running his hotel business smoothly, with his daughter Mavis (Selena Gomez) and son - in - law Johnny (Andy Samberg). However, Drac is depressed by the fact that, since his wife's death, he's lonely despite attempts to meet someone . Misinterpreting this as stress from overwork, Mavis books a cruise so they can all take a break and spend more time together as a family . The next day, Dracula, Mavis, Johnny, Dennis (Asher Blinkoff), Vlad (Mel Brooks), and the hotel guests board a cruise ship called the Legacy . Dracula sees the ship's human captain, Ericka (Kathryn Hahn), and immediately falls for her, something that he thought was impossible as he had already "zinged" before . </P> <P> Ericka goes to a secret room on the lower decks where she meets Abraham Van Helsing, who is revealed to be her great - grandfather and is almost completely mechanised, to avoid death . Van Helsing has plans to eliminate all the monsters, in the cruise upon its arrival at the lost city of Atlantis using an Instrument of Destruction, that could be found in Atlantis's ruins. Van Helsing makes Ericka promise to not assassinate Dracula beforehand, but she repeatedly attempts to do so anyway, albeit unsuccessfully, much to her frustration . After failing to kill Dracula at an underwater volcano, Ericka moans about being unable to get him . Dracula's friends hear this, and thinking that Ericka likes him, inform Dracula about what they heard . Dracula nervously asks Ericka out on a date, and she accepts since she sees this as another chance to kill the vampire . However, as they dine on a deserted island, Ericka begins to fall in love with Drac, after they learn about each other's pasts . </P> <P> Mavis finds out Dracula is interested in Ericka and becomes suspicious of Ericka's motives . The cruise ship reaches Atlantis which has been converted into a casino; Dracula decides to tell Mavis the truth about Ericka, but gets distracted seeing Ericka going into a crypt below the city . Drac follows her, with Mavis not far behind, and learns that Ericka is after a "family heirloom". With Dracula's help, she gets past the numerous booby traps around the object and escapes . Mavis arrives and confronts them, and Dracula confesses that he "zinged" with Ericka, to Mavis's surprise and confusion . After Ericka is told what a "zing" is, she harshly rejects Dracula's romantic feelings, leaving Dracula heartbroken . </P>

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