Don is fifty years old. One morning, he wakes up in his mountain cabin, unsure of how he got there. Certain it was the result of a drinking spree, he decides to skip work that day. Discovering that the electricity is out, he heads into town, but discovers that while he slept, a mysterious plague has turned the majority of the population in "growlers," mindless, zombie-like creatures, intent on eating him and the few remaining humans. Those that are left, must learn to work together in order to survive.