Zak and Rocky DooDle always wondered why they and their mother Betty were the last of the once peaceful and brave gremlins. On their first day of Realm Lessons at the Great Learning Tree they meet Lucy, a young forest rat girl, who tells them that the mysterious Rat Elders are hiding many secrets from their past. Determination to uncover the secrets soon leads the young cubs into a terrifying Goblin Graveyard. Once there, trouble soon follows when Zak is kidnapped by an evil Troll Warrior and taken to be the prisoner of the deadly Dark Witch Annie Revoltful. Now, its up to his mother Betty, brother Rocky, Lucy and her brave father Ralf to begin a legendary journey through the enchanted Realm to save him.