THERE IS NO STOPPING IT.
THE CLOUD IS ARMAGEDDON, STEAMROLLING THE WORLD AT A WALKING PACE.
Day 0.
From the wreckage of a research facility in Switzerland, a plume of toxic smoke and ash pours into the sky, forming an impenetrable cloud that is slowly smothering the world in darkness.
As Europe disappears beneath the Cloud, a squad of United States marines are sent on a desperate mission to find out what went wrong, and how to undo it before it's.