This story takes place after the events of the second movie of Hotel Transylvania. Johnny/Batman was now facing more villains than ever and the hunter from Dracula's past has returned for revenge. It's now up to both Johnny and Batman to protect Dracula, Mavis, Dennis, and the entire monster world form the war that's about to come.

This story takes place between the first and second Hotel Transylvania movies. Mavis and Johnathan are now engaged and Dracula couldn't be more happier for the young couple. It'll also explore Johnny's early career as Batman and facing his rogues gallery in the future.