Three years after the outbreak of an epidemic, three survivors have to make their way from a shelter in the thick of the woods to the city, in an attempt to save the world.Three years after the outbreak of an epidemic, three survivors have to make their way from a shelter in the thick of the woods to the city, in an attempt to save the world.Three years after the outbreak of an epidemic, three survivors have to make their way from a shelter in the thick of the woods to the city, in an attempt to save the world.