The Remaining

In a steel-and-lead-encased bunker 40 feet below the basement level of his house, Captain Lee Harden of the United States Army waits. On the surface, a plague ravages the planet, infecting over 90% of the populace. The bacterium burrows through the brain, destroying all signs of humanity and leaving behind little more than base, prehistoric instincts. The infected turn into hyper-aggressive predators, with an insatiable desire to kill and feed. Some day soon, Captain Harden will have to open the hatch to his bunker, and step out into this new wasteland, to complete his very simple mission: Subvenire Refectus.

To Rescue and Rebuild.