The story starts with two young brothers, 12-year-old Oliver and 5-year-old Nicholas, on a cold winter's day. Whilst Oliver goes in search of adventure, Nicholas is kidnapped for a king's ransom, travelling to a magical kingdom where they get caught up in a race to retrieve a magical crystal egg. Unexpected friendships are made along the way as they encounter an array of mythical beasts. Set amidst a rainbow-coloured forest, a fairy resides in her crystal palace, her foe lives in a moated castle. Which one will retrieve the magical crystal egg, and will Oliver and Nicholas make it home again?