To free Baba Yaga and Renfield from the clutches of Monster Hunter Mila Starr, the Wishbone Family once more transforms into a Vampire, Frankenstein's Monster, a Mummy and a Werewolf but when aided by their three pet bats, the Monster Family zooms around the world again to save their friends, make new monstrous acquaintances.

The Wishbone family are far from happy. In an attempt to reconnect as a family, they plan a fun night out. However, the plan backfires when they are cursed and all turned into Monsters.

In ‘The Secret of Balthasar Castle’, the first cinematic adventure of the Europa-Park mascots, Ed, Edda and their friends have to solve the riddle of the mysterious castle. The five friends encounter and master some exciting situations as the adventurous treasure hunt takes them through the mysterious catacombs of Balthasar Castle. It’s no question that Ed, Edda, Eurofant, Böckli and Louis have to show a lot of courage here, as only together can they decipher the great secret.

Edda, a young mouse and the daughter of fairground operator Erwin, dreams of becoming a race car driver. Ahead of the 50th anniversary of the European Grand Prix, Edda gets the opportunity to meet her idol, racing star Ed, and to help her father save his failing business. But to do so, she'll have to get behind the wheel herself.