Triss, a spunky young squirrelmaid, is slave to the evil ferret King Agarnu and his ruthless daughter, Princess Kurda. These two tyrants hold their subjects in a cruel and merciless grip. One day, Triss makes a daring escape. She steals the king's prize boat and sails to safety at Redwall Abbey. But at Redwall a more challenging fate is in store for the brave squirrel..