Infection has encased the planet in web of destruction, death and anarchy. Hordes of infected roam the cities seeking out those that were overlooked in the outbreak. The weak succumb while the strong fight back.
With limited options, governments resort to last ditch efforts to stop the spread of the virus.
ODA-141, the SEALs of Shark Platoon and a company of Rangers are stranded in Alaska after a series of events forces them off course and into the throes of a blizzard. On foot, with wounded, they must continue their mission no matter the cost.
The Safeguard group, after the second violent encounter with infected in Clovis, find another group of survivors and another threat besides the ever-present infected.
The Missouri makes it to the west coast with its crew only to find their target source for resupply overrun with hordes of the re-animated.
Sierra-3, the Forward Recon Team left on their own in New York City, after finding refuge must now formulate a plan to get all the survivors off Manhattan Island before it’s too late.