Driven by its merciless leader, an army of rats is about to attack the woodland mice of Tira-Nor. Only JaRed the field mouse has the courage to face this terrible onslaught-a mouse so small and so young that even his family calls him 'Runt.' But it is not just the rats who are bent on Tira-Nor's destruction. A cold shadow stalks the tunnels of the underground mouse city. And JaRed is about to encounter a power that will fling him into a destiny wilder than anything he's ever imagined!