An apocalyptic blight has long since turned the green earth grey. The world's few survivors face a never ending search for food, and a constant fight against those who have cast aside all morality in a bid to survive.

But in the midst of the worldwide horror, rumors of a sanctuary spread. Eagle One, the enigmatic destination, might be the last hope for civilization. If it can be found.

Eric Fletcher, who has reunited with his friend, Neil, at his Montana refuge, is planning to set off in search of Eagle One when the spring thaw comes. But an unexpected attack forces an early departure, thrusting the friends and those traveling with them into a battle against the darkest parts of humanity that cling to existence.