They are two young women who are trying to stay alive in a post-apocalyptic world. It is very dangerous for them to speak, because the hordes of undead that live on the Earth will find them. When their home runs out of fuel, they have to go out into the country to find gas, which leads to a terrifying encounter with survivors. Then, they'll be forced into a deadly fight with the evil that surrounds them at home, where they'll be forced to choose between life and death.