This is the story of the rise to power of the largest wolf pack ever known. Going from strength to strength they are now at a turning point of their lives. The balance of power is shifting within the pack. The leaders face a take-over challenge from within their own family.
Winter in Yellowstone is six months of temperatures below freezing. It can look beautiful but the conditions are fierce. This is a time when most animals struggle simply to survive but it's also a time when one animal truly comes into its own. This is the time of the wolf.