Joanne Williams unknowingly holds the key to an antidote against an alien virus lying dormant inside the Giant Sequoia trees for thousands of years that have now awakened due to the shifting of the Polar caps and the rising temperatures on the earth’s surface.

Jo’s mother, Dr. Jean Williams, is racing against time to synthesize a cure before the unscrupulous Hermes Institute is able to weaponize the virus.

COMPS: "The Last of Us" meets "The Mist