Two young women's plans to try to live a normal life in isolation after a world ending apocalypse go awry when they are discovered.

Jeremiah Ecks, an FBI agent, realizes that he must join with his lifelong enemy, Agent Sever, a rogue DIA agent with whom he is in mortal combat, in order to defeat a common enemy. That enemy has developed a "micro-device" that can be injected into victims in order to kill them at will.