Welcome to the fantasy world of "Little Nemo," filled with dreams of enchanted lands and new friends, amazing magic and fun-filled adventure. A place where anything is possible and the only boundaries are those of the imagination. The King of Slumberland welcomes Nemo with open arts, making him heir to the throne and giving him a magical key that opens any door in the kingdom. "But I must warn you," the King says, "there is one door you must never open." Not heeding the King's advice, Nemo unlocks the door.