Lucky and his Pack were able to defeat Terror's dogs. But their new world still holds many dangers. Now the Pack has come to the edge of a strange lake that seems to stretch on forever, and Lucky discovers that there is barely enough food to survive. As winter approaches and the dogs struggle for prey and shelter, Alpha makes it clear that his own needs come before the rest of the Pack. Meanwhile, the Fierce Dogs are determined to destroy Alpha's Pack once and for all. And while Lucky struggles to keep his friends safe, he is haunted by visions of a storm of dogs -- and a terrible battle that seems to loom closer every day.