Sheriff's deputy Rick Grimes awakens from a coma to find a post-apocalyptic world dominated by flesh-eating zombies. He sets out to find his family and encounters many other survivors along the way.

The lives of ten strangers intersect through a terrifying chain of events as a mutating fungus begins to spread through a small town wiping out everyone that comes into contact with it.

The "Overlook Animal Research Laboratory" has long been working on genetic engineering without any trouble. That all changes one night when two would be animal liberators set free a test rabbit, not knowing that the bunny's genes have gone haywire.