A nameless adventurer arrives at a Disney castle to discover that Goofy has misplaced the crucial golden key needed to unlock the gate, leaving the venue's grand parade in jeopardy. Mickey Mouse enlists the visitor's aid in locating six scattered silver keys that will serve as an alternative means to open the Cinderella Castle gates. The quest leads through various themed attractions and challenges across the magical kingdom. Upon successfully gathering all six keys and unlocking the castle, Mickey expresses his gratitude and the long-awaited parade finally commences, celebrating the day's triumph.