The residents of the small town of Brownsville, Texas are about to wake up to a nightmare. As the undead roam the streets and feast upon the flesh of others, nobody understands what is going on, or what has caused this to happen to their quiet little town. Ex-Marine David Combs is also a resident of the town, and like many others, his life has been turned upside down. On the hunt to find and save his daughter from the undead, he is also looking for answers... and revenge against the ones that caused it all.