Edgy dark horror which taps into recent pandemic fears. A zombie-creating virus has taken hold across the world with its effects recorded by the video cameras of three separate groups of survivors. A couple fleeing London begin scavenging what they can in the devastated towns, oblivious to the omnipresent danger. In another area, survivors hole up in a farmhouse to escape the nightmare, only to find themselves under siege from the undead. Finally, a film crew caught up in events decide to shelter in nearby woods, unaware of the approaching horror.