After a Russian bioweapon turns humans into half-dead killing machines, a group of highly trained Special Operators must defend a remote outpost in Far West Texas. While fighting off the infected, the group must also defend against a band of anarchist rebels who threaten to destroy the last remaining signs of civilization. In a race to preserve humanity only the strongest can survive.

On Christmas Eve, ten strangers board a bus traveling across Texas. Far out in the wilds they collide with a meth-addicted biker