"The Grand Adventure" tells the story of how Mickey, Donald, and Goofy first met. While we often see them together as best friends, the origins of their friendship have always been a mystery.
In this film, Mickey is the apprentice of Master Yen Sid. Because of this relationship, Mickey is unable to leave his master's domain until he completes his training. As a result, he has never experienced the outside world or made any real friends.
One day, while accidentally conjuring a spell using Yen Sid's magic hat, Mickey finds himself transported to a whole new world, where he is quickly embraced by music and dance.
However, Mickey soon discovers that not everything is joyful; an attack from mysterious forces disrupts his celebration. It is here that Mickey learns of a prophecy foretelling that he must prevent the return of a former evil ruler who is imprisoned within Bald Mountain.
Determined to take on this dangerous quest, Mickey meets many friends who will help him understand the values of love, friendship, and hope. However, he will also have to confront the forces of evil, as a group of Disney villains seeks to stop him and find the key to locating Bald Mountain, intending to release their former master from his hidden prison and plunge the land back into darkness and chaos.
