When an outbreak hits, Aidan barricades himself inside his apartment and starts rationing food. His complex is overrun por infected Screamers, and with the world falling apart into chaos, he is left completely alone fighting for his life.
Pregnant Rachel and her husband, Matt, are stranded after wrecking their car on a remote Scottish road. Though hostile at first, a nearby farmer and his wife welcome them in after learning that Rachel is with child.