In 1897, during a chaotic train ride, Dracula (Adam Sandler) finds himself in a tricky situation with his monster friends—Frankenstein (Kevin James), Griffin (David Spade), Murray (Keegan-Michael Key), and Wayne (Steve Buscemi)—all disguised in women’s dresses. Out of nowhere, Abraham Van Helsing (Jim Gaffigan) storms in, yelling about monsters aboard the train. He terrorizes Frank by holding a match under his nose, causing all the monsters to flee and escape onto the train roof, with Van Helsing in hot pursuit. In a moment of quick thinking, Dracula sends his friends to safety while confronting Van Helsing. Just as Van Helsing corners him, Dracula transforms into a mouse through the darkness of the tunnel, leaving Van Helsing to smack himself against the train. Emerging from the tunnel, Dracula shifts to bat form and evades Van Helsing's clumsy biplane attacks, eventually sending him crashing into the ocean.
Fast forward to the present day; Dracula is prepping for a grand monster wedding at Hotel Transylvania. As excitement fills the air, the groom waits eagerly while the bride is a bundle of nerves. Mavis (Selena Gomez) steps in to comfort her, assuring her that love, or “zing,” is a once-in-a-lifetime experience. After a heartfelt pep talk, the bride confidently joins her partner for the wedding ceremony. Just after they say their vows, chaos ensues when Tinkles, a giant dog, bursts in, riding Dennis ([Asher Blinkoff]) and Winnie ([Sadie Sandler]). With firm authority, Dracula commands Tinkles to sit and exits with him on a leash.
During the vibrant reception, Johnny (Andy Samberg) takes the DJ booth, filling the space with music as everyone dances—except for Dracula, who feels the loneliness of not having a partner to share the joy with. Just then, an unexpected family connection disrupts the dance; a relative of Frank pulls Dracula into a dance, sending him into a panic and unintentionally causing mayhem at the DJ table.
Later, alone in the attic, Dracula attempts to find a date using his phone—an ordeal that quickly spirals out of control due to miscommunication. His daughter Mavis stumbles upon this awkward scene and realizes he’s been overworking himself. Distracted by a vacation commercial on the TV, she unknowingly sets off an adventure filled with excitement and mischief.
In a dilapidated plane, Dracula and his entourage, including Mavis, Johnny, Frank, Eunice (Fran Drescher), Wayne, Wanda (Molly Shannon), loyal pups, Griffin, Blobby (Genndy Tartakovsky), and Vlad (Mel Brooks), embark on a trip to the Bermuda Triangle. However, hidden among the luggage is Tinkles, prompting a chaotic crash landing. After a rocky start, they eventually board an aircraft carrier, greeted by a fish-themed crew leader, Stan (Chris Parnell).
The tour continues, and Ericka (Kathryn Hahn), the ship’s captain, captivates Dracula’s attention, making his heart race. Initially lost for words and communication, he soon discovers that upon meeting her, he has zung. Tensions rise when Dracula realizes Ericka is not just charming but also holds ulterior motives rooted in a family vengeance led by her great-grandfather, Van Helsing.
As they travel through thrilling destinations like an underwater volcano and Atlantis, the camaraderie among the monsters is palpable. Unfortunately, danger lurks in the form of Ericka’s plans to eliminate Dracula using her ancestor's devious machinations. Amid the laughter and joy, a sinister undercurrent threatens to surface.
When the Kraken awakens during a dramatic showdown between Dracula and Van Helsing, it leads to heart-stopping moments where Dracula’s fate hangs in the balance. The power of friendship, love, and family is tested in this daring escapade. With the help of Mavis, Johnny, and the other monsters, the funkiness of music becomes their ultimate weapon against the Kraken, seamlessly blending joy and intensity.
As the cruise adventure concludes with heroes rising, Dracula's affections come to light, culminating in an unexpected proposal adorned with a spider-shaped ring. The monsters gather to celebrate a new chapter in their lives, embracing love, friendship, and the joys of family at Hotel Transylvania.
